I just installed it on 4.2.2 and it works great. Took me a minute to realize that it only appears in the postbit - yeah, reading the thread helps sometimes, lol - but that's just perfect!

Excellent, glad ya like it, and thanks for marking as installed. :)

So members with an avatar do not have their avatars replaced by this? only members with no avatar gain it right?

Correct. :)

vBulletin 4.2.2 - not working. Avatar is not showing.

I have it installed on 4.2.2 and it works perfectly. Are you sure you are not confusing the avatar with the profile picture? The profile picture will still be blank.

Correct, it should be working on all versions of vB4.

It works for only new users or also for current?

Any user that does not have a avatar defined, just remember it only works in the postbit.

Installed on vb 4.2.2 but avatars are not showing for members with no avatars. Yes I am checking the postbit