I'm using the auto installer, but when I click install, I get this message:

"vars_wordlets_mods.cgi not installed. Please install it before installing Who's Online."

Now, I know it's working because I have the memberlist running and it also shows up in my control pannel as "Modification Wordlets".

Any idea on why I'm getting that message?

ultimatebb.cgi was not modified correctly for wordlets mods if you get that error... make sure you modified it.