ShadeTabs

So, I'm currently in the process of creating a small community, (no I won't advertise) but I've seem to have come across a problem with the way Categories are categorized by tabs.

I've seen how this community and a lot of others do it, using this, but when I try, it never seems to work.

Or when I try using a plugin strictly for 1.6*, it doesn't work either.

Could someone possibly assist me?