I might need this later, so will just ask here - what is my best option for importing phpBB2 w/ Attachment Mod into XenForo? I have a vBulletin 4 license, my friend has a IPB License, and passwords do not need to be preserved (I want everybody to reset their password so they are hashed with bcrypt)
I'm not quite sure whether phpBB2 -> phpBB3 upgrade will preserve attachments, however vB's ImpEx says their importer will preserve attachments.
I can afford writing my own code, as long as it's XF based.
I could only recommend upgrading to phpBB3, but I don't know what would happen to your attachments then. It's likely something that other people have gone through so there is probably something at phpBB to help.
Which attachment mod for phpBB2 are you using? The one I had was storing attachments in a directory called "userpix" and then inserting them into posts with the img BB code. The user controls for these weren't converted to phpBB3 when that was installed, so they all just remained as IMG BB codes in the posts.
The built in attachemnts from phpBB3 were converted to XenForo though.