Newbee - HOW CAN I REMOVE suPHP

Hi,
I'm new to all this... my problem is trying to install Ispconfig on a server, everything was working before, but later i tried to install suPhp packet and i screwed everything!!! i want to go back to my initial install but i've this error in the shell "Syntax error on line 12 of /etc/apache2/conf.d/virtual.conf:
Invalid command 'php_admin_value', perhaps misspelled or defined by a module not included in the server configuration"

The only thing i think i can do is to remove suPhp, so please anyone ready to help should just try and give me a solution about removing it.
PLEASE!!!

Why don't you just remove the line in the apache config that is causing the problem?

How can i remove suPhp

Sorry, this is my first time in dealing with a shell!! so i dont know where to go exactly in the terminal... i can PM you and give you my account infos so if possible you can help.
Thanks