Award doesn't trigger

This was exactly what I was after to assist in envigorating a community so thank you for your efforts.

I’m running Buddypres 1.7.1, latest bbPress and Invite Anyone and now this plugin on my http://www.geekandjock.com site.

I’ve set up a half dozen initial achievements for first comment, first group join, 5 invites and register.

I can’t seem to get the achievement to engage though. I can assign an award manually via the User Admin panel and the popup achievement works fine.

Is there something I’m missing that might prevent this working?

http://ww.wp.xz.cn/extend/plugins/achievements/