...search for a username/pet name? Not just to find some one, but also to see if a name is taken.

For usernames, just use http://www.subeta.net/users/Crowley but replace your username with the UN you're looking for. I'm not sure how the pets would work though. :)

Home>Search>type it in. If nothing comes up, you're good to go. :D

Ugh, I'm always missing the obvious (it's in the frakin' menu!) Thank you for your help.

For pets:

http://www.subeta.net/pets/PETNAMEHERE

it'll work fine. (;

You and me both. xD