Well - i know the instructions say to do what you just posted, i installed it this morning without any problems, with the whole two hack thing aswell. - however - if you read omegatron's previous post - the one with all the code in it - you'll see the combined hack code he pasted is missing the necessary variable.
At the bottom of the post he even says that everything works fine except for the quote button : "Nothing Happens" - just means it's not displaying the $quote variable. Anyway *shrugs* use it don't use it []/forum/images/icons/smile.gif[/]