diff --git a/phpBB/adm/style/acp_ext_delete.html b/phpBB/adm/style/acp_ext_delete.html
index 1ce99b8905..f9a52861e5 100644
--- a/phpBB/adm/style/acp_ext_delete.html
+++ b/phpBB/adm/style/acp_ext_delete.html
@@ -18,10 +18,10 @@
 	</form>
 	<!-- ELSE IF -->
 		<div class="successbox">
-			<p>{L_DELETE_SUCESS}</p>
+			<p>{L_DELETE_SUCCESS}</p>
 			<br />
 			<p><a href="{U_RETURN}">{L_RETURN}</a></p>
 		</div>
 	<!-- ENDIF -->
 
-<!-- INCLUDE overall_footer.html -->
\ No newline at end of file
+<!-- INCLUDE overall_footer.html -->
diff --git a/phpBB/adm/style/acp_ext_details.html b/phpBB/adm/style/acp_ext_details.html
index 397610d83b..bc5fda7cc2 100644
--- a/phpBB/adm/style/acp_ext_details.html
+++ b/phpBB/adm/style/acp_ext_details.html
@@ -69,10 +69,6 @@
 			<dt><label for="author_name">{L_AUTHOR_NAME}:</label></dt>
 			<dd><strong id="author_name">{authors.AUTHOR_NAME}</strong></dd>
 		</dl>
-		<dl>
-			<dt><label for="author_email">{L_AUTHOR_USERNAME}:</label></dt>
-			<dd><strong id="author_email">{authors.AUTHOR_USERNAME}</strong></dd>
-		</dl>
 		<!-- IF authors.AUTHOR_EMAIL -->
 		<dl>
 			<dt><label for="author_email">{L_AUTHOR_EMAIL}:</label></dt>
@@ -94,4 +90,4 @@
 		<!-- END authors -->
 	</fieldset>
 	
-<!-- INCLUDE overall_footer.html -->
\ No newline at end of file
+<!-- INCLUDE overall_footer.html -->
diff --git a/phpBB/adm/style/acp_ext_disable.html b/phpBB/adm/style/acp_ext_disable.html
index 2198db09a1..c7de43a611 100644
--- a/phpBB/adm/style/acp_ext_disable.html
+++ b/phpBB/adm/style/acp_ext_disable.html
@@ -18,10 +18,10 @@
 	</form>
 	<!-- ELSE IF -->
 		<div class="successbox">
-			<p>{L_DISABLE_SUCESS}</p>
+			<p>{L_DISABLE_SUCCESS}</p>
 			<br />
 			<p><a href="{U_RETURN}">{L_RETURN}</a></p>
 		</div>
 	<!-- ENDIF -->
 
-<!-- INCLUDE overall_footer.html -->
\ No newline at end of file
+<!-- INCLUDE overall_footer.html -->
diff --git a/phpBB/adm/style/acp_ext_enable.html b/phpBB/adm/style/acp_ext_enable.html
index 4c94ce7b2b..dd892d3477 100644
--- a/phpBB/adm/style/acp_ext_enable.html
+++ b/phpBB/adm/style/acp_ext_enable.html
@@ -18,10 +18,10 @@
 	</form>
 	<!-- ELSE IF -->
 		<div class="successbox">
-			<p>{L_ENABLE_SUCESS}</p>
+			<p>{L_ENABLE_SUCCESS}</p>
 			<br />
 			<p><a href="{U_RETURN}">{L_RETURN}</a></p>
 		</div>
 	<!-- ENDIF -->
 
-<!-- INCLUDE overall_footer.html -->
\ No newline at end of file
+<!-- INCLUDE overall_footer.html -->
diff --git a/phpBB/adm/style/acp_ext_purge.html b/phpBB/adm/style/acp_ext_purge.html
index c73bbe6e00..55a648a3e3 100644
--- a/phpBB/adm/style/acp_ext_purge.html
+++ b/phpBB/adm/style/acp_ext_purge.html
@@ -18,10 +18,10 @@
 	</form>
 	<!-- ELSE IF -->
 		<div class="successbox">
-			<p>{L_PURGE_SUCESS}</p>
+			<p>{L_PURGE_SUCCESS}</p>
 			<br />
 			<p><a href="{U_RETURN}">{L_RETURN}</a></p>
 		</div>
 	<!-- ENDIF -->
 
-<!-- INCLUDE overall_footer.html -->
\ No newline at end of file
+<!-- INCLUDE overall_footer.html -->
diff --git a/phpBB/includes/acp/acp_extensions.php b/phpBB/includes/acp/acp_extensions.php
index 918ef3f813..130d00208d 100644
--- a/phpBB/includes/acp/acp_extensions.php
+++ b/phpBB/includes/acp/acp_extensions.php
@@ -25,28 +25,23 @@ class acp_extensions
 	function main()
 	{
 		// Start the page
-		global $user, $template, $request;
+		global $user, $template, $request, $phpbb_extension_manager, $db;
 
-		$user->add_lang(array('install', 'acp/customisations'));
+		$user->add_lang(array('install', 'acp/extensions'));
 
 		$this->page_title = 'ACP_EXTENSIONS';
 
-		$action = $request->variable('action', '');
+		$action = $request->variable('action', 'list');
 		$ext_name = $request->variable('ext_name', '');
 
-		// Set action to list if not set
-		if (empty($action))
-		{
-			$action = 'list';
-		}
-
 		// What are we doing?
 		switch ($action)
 		{
 			case 'list':
 			default:
-				$this->list_enabled_exts();
-				$this->list_disabled_exts();
+				$this->list_enabled_exts($db, $template);
+				$this->list_disabled_exts($db, $template);
+				$this->list_available_exts($phpbb_extension_manager, $template);
 				$this->tpl_name = 'acp_ext_list';
 			break;
 
@@ -55,13 +50,15 @@ class acp_extensions
 				$template->assign_vars(array(
 					'PRE'		=> true,
 					'U_ENABLE'	=> $this->u_action . '&amp;action=enable&amp;ext_name=' . $ext_name,
-				   )
-				);
+				));
 			break;
 
 			case 'enable':
-				$this->enable_extension($ext_name);
+				$phpbb_extension_manager->enable($ext_name);
 				$this->tpl_name = 'acp_ext_enable';
+				$template->assign_vars(array(
+					'U_RETURN'	=> $this->u_action . '&amp;action=list',
+				));
 			break;
 
 			case 'disable_pre':
@@ -69,13 +66,15 @@ class acp_extensions
 				$template->assign_vars(array(
 					'PRE'		=> true,
 					'U_DISABLE'	=> $this->u_action . '&amp;action=disable&amp;ext_name=' . $ext_name,
-				   )
-				);				
+				));				
 			break;	
 
 			case 'disable':
-				$this->disable_extension($ext_name);
+				$phpbb_extension_manager->disable($ext_name);
 				$this->tpl_name = 'acp_ext_disable';
+				$template->assign_vars(array(
+					'U_RETURN'	=> $this->u_action . '&amp;action=list',
+				));
 			break;
 
 			case 'purge_pre':
@@ -83,13 +82,15 @@ class acp_extensions
 				$template->assign_vars(array(
 					'PRE'		=> true,
 					'U_PURGE'	=> $this->u_action . '&amp;action=purge&amp;ext_name=' . $ext_name,
-				   )
-				);
+				));
 			break;		
 
 			case 'purge':
-				$this->purge_extension($ext_name);
+				$phpbb_extension_manager->purge($ext_name);
 				$this->tpl_name = 'acp_ext_purge';
+				$template->assign_vars(array(
+					'U_RETURN'	=> $this->u_action . '&amp;action=list',
+				));
 			break;
 
 			case 'delete_pre':
@@ -97,8 +98,7 @@ class acp_extensions
 				$template->assign_vars(array(
 					'PRE'		=> true,
 					'U_DELETE'	=> $this->u_action . '&amp;action=delete&amp;ext_name=' . $ext_name,
-				   )
-				);
+				));
 			break;
 
 			case 'delete':
@@ -108,49 +108,16 @@ class acp_extensions
 			case 'details':
 				$filepath = $phpbb_root_path . 'ext/' . $ext_name . '/extension.json';
 				$this->tpl_name = 'acp_ext_details';
-				$this->get_meta_info($filepath);
+				$this->parse_meta_info($ext_name, $phpbb_extension_manager);
 			break;
 		}
 	}
-		
-	function enable_extension($ext_name)
+
+	private function list_enabled_exts($db, $template)
 	{
-		global $phpbb_extension_manager, $template, $cache;
-
-		$phpbb_extension_manager->enable($name);
-		$template->assign_vars(array(
-			'U_RETURN'	=> $this->u_action . '&amp;action=list',
-		));
-		$cache->purge();
-	}
-
-	function disable_extension($ext_name)
-	{
-		global $phpbb_extension_manager, $template, $cache;
-		$phpbb_extension_manager->disable($name);
-		$template->assign_vars(array(
-			'U_RETURN'	=> $this->u_action . '&amp;action=list',
-		));
-		$cache->purge();
-	}
-
-	function purge_extension($ext_name)
-	{
-		global $phpbb_extension_manager, $template, $cache;
-		$phpbb_extension_manager->purge($name);
-		$template->assign_vars(array(
-			'U_RETURN'	=> $this->u_action . '&amp;action=list',
-		));
-		$cache->purge();
-	}
-
-	function list_enabled_exts()
-	{
-		global $db, $template;
-
 		$sql = 'SELECT ext_name
 			FROM ' . EXT_TABLE . '
-			WHERE ext_active= 1
+			WHERE ext_active = 1
 			ORDER BY ext_name ASC';
 		$result = $db->sql_query($sql);
 		while ($row = $db->sql_fetchrow($result))
@@ -168,13 +135,11 @@ class acp_extensions
 		return;
 	}
 
-	function list_disabled_exts()
+	private function list_disabled_exts($db, $template)
 	{
-		global $db, $template;
-
 		$sql = 'SELECT ext_name
 			FROM ' . EXT_TABLE . '
-			WHERE ext_active= 0
+			WHERE ext_active = 0
 			ORDER BY ext_name ASC';
 		$result = $db->sql_query($sql);
 		while ($row = $db->sql_fetchrow($result))
@@ -193,7 +158,7 @@ class acp_extensions
 		return;
 	}
 
-	function list_available_exts()
+	function list_available_exts($phpbb_extension_manager, $template)
 	{
 		$phpbb_extension_manager->load_extensions();
 		$all_available = array_keys($phpbb_extension_manager->all_available());
@@ -214,12 +179,9 @@ class acp_extensions
 		return;
 	}
 
-	function get_meta_info($filepath)
+	function parse_meta_info($ext_name, $phpbb_extension_manager)
 	{
-		global $template;
-
-		$metadatafile = file_get_contents($filepath);
-		$metadata = json_decode($metadatafile,true);
+		$phpbb_extension_manager->get_meta_data($ext_name)
 
 		$template->assign_vars(array(
 			'NAME'			=> $metadata['name'],
@@ -235,15 +197,16 @@ class acp_extensions
 			)
 		);
 
-		foreach ($metadata["authors"] as $author)
+		foreach ($metadata['authors'] as $author)
 		{
 			$template->assign_block_vars('authors', array(
-				'AUTHOR_NAME'		=> $author["name"],
-				'AUTHOR_USERNAME'	=> $author["username"],
-				'AUTHOR_EMAIL'		=> $author["email"],
-				'AUTHOR_HOMEPAGE'	=> $author["homepage"],
-				'AUTHOR_ROLE'		=> $author["role"],
+				'AUTHOR_NAME'		=> $author['name'],
+				'AUTHOR_EMAIL'		=> $author['email'],
+				'AUTHOR_HOMEPAGE'	=> $author['homepage'],
+				'AUTHOR_ROLE'		=> $author['role'],
 			));
 		}
+
+		return $metadata;
 	}
 }
diff --git a/phpBB/includes/extension/manager.php b/phpBB/includes/extension/manager.php
index 86d8fab64b..2eebebf9b2 100644
--- a/phpBB/includes/extension/manager.php
+++ b/phpBB/includes/extension/manager.php
@@ -464,4 +464,68 @@ class phpbb_extension_manager
 	{
 		return new phpbb_extension_finder($this, $this->phpbb_root_path, $this->cache, $this->php_ext, $this->cache_name . '_finder');
 	}
+
+	/**
+	* Gets and processes the contents of the composer.json file.
+	* 
+	* TODO: Add authors, fix it
+	* 
+	* @param string $name Extension name to check
+	* @return array       All the existing metadata keys
+	*/
+	public function get_meta_data($name)
+	{
+		// Find out where the composer.json is
+		$ext_filepath = get_extension_path($name);
+		$md_filepath = $phpbb_root_path . $ext_filepath . '/composer.json';
+
+		// Read the composer.json and decode it
+		$metadatafile = file_get_contents($filepath);
+		$metadata = json_decode($metadatafile, true);
+
+		// What keys are required
+		$required_md_keys = array(
+			$metadata['name'],
+			$metadata['type'],
+			$metadata['description'],
+			$metadata['version'],
+			$metadata['license'],
+			$medadata['require']['phpbb'],
+			$metadata['extra']['dispay-name'],
+		);
+
+		// Check for required keys and trigger and error if it doesn't exist
+		foreach ($required_md_keys as $md_key) 
+		{
+			if (empty($md_key))
+			{
+				trigger_error('Not all required items exist in the composer.json');
+			}
+			else
+			{
+				$existing_required_keys += $md_key;
+			}
+		}
+
+		// Which keys are optional
+		$optional_md_keys = array(
+			$metadata['require']['php'],
+			$metadata['time'],
+			$metadata['homepage'],
+		);
+
+		$existing_optional_keys = array();
+
+		foreach ($optional_md_keys as $md_key) 
+		{
+			if (!empty($md_key))
+			{
+				$existing_optional_keys += $md_key;
+			}
+		}
+
+		$keys = array_merge($existing_optional_keys, $existing_required_keys);
+
+		return $keys;
+	}
 }
diff --git a/phpBB/language/en/acp/extensions.php b/phpBB/language/en/acp/extensions.php
index 77d0b2f3cd..37cabe477b 100644
--- a/phpBB/language/en/acp/extensions.php
+++ b/phpBB/language/en/acp/extensions.php
@@ -38,7 +38,7 @@ $lang = array_merge($lang, array(
 	'EXTENSION'				=> 'Extension',
 	'EXTENSIONS'			=> 'Extensions',
 	'EXTENSIONS_ADMIN'		=> 'Extensions Admin',
-	'EXTENSIONS_EXPLAIN'		=> 'The Extensions Admin is a tool in your phpBB Board which allows you to manage all of your extensions. For more information about extensions please visit <a href="http://phpbb.com/mods/extensions/">this page</a> on phpBBs Offical Website.',
+	'EXTENSIONS_EXPLAIN'		=> 'The Extensions Admin is a tool in your phpBB Board which allows you to manage all of your extensions. For more information about extensions please visit <a href="http://phpbb.com/mods/extensions/">this page</a> on phpBB&#39;s Offical Website.',
 
 	'DETAILS'				=> 'Details',