Converting from PhPNuke to Vbulletin

[linksysinfo]

My site currently runs, on PhpNuke Platinum and i am seriously thinking of using vBulletin. how easiy would it be to convert all users/pwds and posts/forums to vBulletin?

would i need to change anything? my site is currently using the intergrated phpbb v2.0.18 that is part of phpnuke.

are the tables compatable with the conversion tools?

[feldon23]

phpBB including users, posts, forums, and attachments are all importable into vBulletin using an official tool.

[linksysinfo]

Nuke uses

nuke_bb* tables whereas phpbb doesn't can the tool be edited to look for nuke_bb* tables instead?