I got the same issue with version 1.1.0 yesterday. I tried to build the source, but I had a hard time since I never build anything with XCode before. ;)

Hope they will approve it soon!

I'm not able to install the latest plugin (1.1.1) with Adium 1.5b2, and when I try to "download" it, I get this error:
An error occurred: Only the submitter, mods and admins are allowed to download Xtras before they are approved.

Any way to download the compiled version outside of Adium Xtras' website?