Thanks for the advice. I installed PP8 and imported using vbag and all looks ok.
One thing, I wanted to maintain a separate db for photopost and put that info in the photopost config file. But mistakenly put my vbulletin db in the vbag config file. So it imported ok but the adm-index showed no cats or pics. I figured it out, fixed the vbag config file, and imported again. All is well. Only thing is my vbulletin db now has a bunch a 'pp' tables in it. Can I delete those or are they needed even if using a separate photopost db?