Your post was answered that I see.
Upgrade instructions are clearly outlined in the documentation of the download. You where told you may install a test copy for development purposes.
If you have questions about ubb to vbulletin import I would suggest you post on the vbulletin support site as that is not something we would answer here.
From a Photopost support perspective I will respond with this information again as I stated that there are steps that need to be done if you switch an integration and many threads here have this info.
1. Do your forum stuff that has nothing to do with our product imports etc
2. Edit the settings table of Photopost settings 41,83,171-173 and set to the proper integration type forum mysql table prefix and cookie settings.
3. Edit your config-inc.php file of Photopost and enter in user database the proper vbulletin mysql info and the proper vbulletin license in the $vblicense variable line.
4. In your usergroups table of Photopost delete all entries except Administrators where that one you want to edit it and change the groupid from 2 to 6
You should then be able to login with your vbulletin admin and import usergroups and set the enhanced vb3 integration stuff
As the other thread clearly states after you do all this there is a 3rd party script I linked you need to run to realign userid's