Anyway, the strange thing is, theres no error or anything.. It just doesn't show. And yes, i tested with only tinytip enabled. Oh well, it doesn't really matter just wanted to see if anyone had simialr problem.
I don't remember off the top of my head... Is pvp rank something that needs turned on in the TinyTip options? Or is it a part of TinyTipExtras?... Snag TinyTipFu if you haven't already - it'll be easier to look through the options.
By default it shows the rank number, like "[R5] Somebody". I think if you want to see the ranks post-2.0 you need to change it to show rank text, not rank number. It's under "Appearance" at the top of the submenu... "PvP Rank Display" or some such. Although I have to agree with Matrix110 that post-2.0 there isn't a whole lot of usefulness to showing the PvP rank. I personally turned off display of my own rank over my head, and of other people's ranks in my tooltips.