I don't think the extension is installed on this wiki. You can see the list of extension installed on Special:Version. One of thing with hosting a wiki with wikia is that only wikia staff can install mediawiki extensions. If you need the extension we can try and write to wikia staff and have it installed.

Thanks for the link. That is helpful.

Thats interesting that you have to go to wiki staff. 

Is it best to come from you, or should I write one up? I think the variable extension will be helpful. Especially with have 2 sets of data on each page. I think it can simplify things, and can also help with the #ask & #show queries using templates.

sorry for d late reply, I just got back from holiday. any admin can write to them for requests, just use this form to write to them. =)

Awesome, if there are ever any other extensions, I will still check with you first. But I seriously doubt I would find another one.