I have a board with abt 106k posts and 6500 members. Can't stand IPB anymore, I feel like I'm loosing a lot of se traffic Did someone tried this? Or I better stick to IPB?
I've converted from IPB to VB before and it was flawless thanks to vBulletin Support Team. You won't be able to transfer your members' passwords because of encryption but besides that it was easy.
vBulletin has a converter called impex which would help you convert all the data, I had converted from phpbb to vBulletin and there was a tool along with impex which help me redirect the older phpbb urls to the new vBulletin ones. Not sure if it works with IPB but worth checking out. Also if you are interested in Search Engine Optimization then make sure you get vbseo.
I have used vB and IPB and it think vB is the best. vBSEO is the ultimate solution for vBulletin. I think you should upgrade from IPB to vB.
Vb is good and easy but IPB is also good. i personaly like IPB so i wud say stick with IPB... if you need any help contact me ..