Codeigniter + PHProxy or PHProxyimproved!

[eluser]WhitecastlePT[/eluser]
Hello guys i'm trying to do little experiment with my own website and i'm trying to use PHProxy with codeigniter so i can access blocked pages from my work place like for example facebook ...

I tried to add the files from PHProxy to a folder ( View section ) and i called the index.php from a controller and i get a few error's that $GLOBAL variables cant be accessed.

My question is if anyone have tried this little stunt before and if yes did you get it running?

Can you give me some direction about this?

PHPproxy resource: http://sourceforge.net/projects/poxy/
PHProxyimproved: http://code.google.com/p/phproxyimproved/

Thank you very much.