It looks like only quarter of my post made it. Basically when I remove the '@' in line 126 I'm getting

Fatal error: Call to undefined function simplexml_load_string() in /Users/user/Library/Application Support/Adium 2.0/Scripts/TwitterStatusX.AdiumScripts/Contents/Resources/twitter.php on line 126

That function is provided by SimpleXML according to the link I posted.

Well... maybe I forgot to set something up. But I looked at the source, because the script wasn't working for me. In the moment it needs to fetch the XML file from Twitter it needs the 'simplexml_load_string' method to decode it into an array:

-----8status->text;
-----8

You need the SimpleXML extension (that provides the http://www.php.net/manual/en/function...-string.php function) of PHP enabled to use this plugin.