Got a problem that is not really BeBot related, but PHP/MySQL related. Trying here to see if anyone heve tried the same.

I'm currently running my orgs forum, currently phpBB, and want to convert the DB from phpBB to PHPnuke. I've seen/tried several perl scripts from the net, but had little luck in getting any to work properly. A few work to some extent.
Anyone tried this and have a good script/tool to convert a phpBB DB to PHPnuke?
Rather not have everyone sign up for the new site again and move posts manually.