On these weekends we have migrated to new forum platform - Yet Another Forum (yes, this is an application name :) ).
The main benefit for it is that site and forum users are merged now. Single login is used both for online store and forum. Also, this forum does better job when you attach files or insert code snippets.
We have migrated all content and users more or less seamlessly. But for some users we had to reset passwords. So if anyone have difficulties to login, just try to restore the password using appropriate page.