I haven’t had a chance to try it out yet, but Instant Messenger 2 v1.5 was released early this morning. Downloads, change log, and support can be found at IM2.com.
I’m hoping that this version fixes many of the [annoying] bugs that v1.4 and earlier had.
For those of you who haven’t heard about IM2, it is a fairly new, free multi-IM client. If all goes well for it they have plans to offer VoIP and many other things not available in any of the current free multi-IM programs. It reminds me a lot of GAIM on steroids. 