3
I'd actually recommend the D3Forum module, much more secure (Cbb/Newbb has issues some regarding security).
http://xoops.peak.ne.jp/I've not used ForumEx, ins't that the same as newbbex, from Instant zero?
http://xoops.instant-zero.com/modules/pages/index.php?pagenum=3If so, what is it you don't like about it, it's just normally Hervé's work is spot on.
Newbbex was based much on Newbb which is now CBB, I'd imagine the databases would be similar so transfer the data shouldn't be too difficult, I wouldn't know without looking at the two though.
If they are similar it should be too much work, but you will still need to get your hands dirty.