[@netweb Keymaster 13 years, 8 months ago]

Give the bbPress 2.3 Beta a shot, everything you mention is fixed except user passwords.

bbPress 2.3 Beta 2

The only outstanding issue is imported vBulletin users have to manually reset their password.

After the import you have to run the ‘Repair Tools’ to recount the topics and replies otherwise they will not be visible in the front-end.

https://codex.bbpress.org/repair-forums/