Thanks! Just thought of something, VB 3.8.1 has user albums under a users control panel and it looks like XF does not have that, what happens to everyone's albums/pictures when importing from VB to XF?
That's the one. For each one you'll get the option to retain the imported content IDs. So if you have a photo in one of the other systems with an ID of 123 then when it is imported to XF with the same ID.
This is useful for your own redirection methods.
You can only import one of the systems with that option selected. Whichever one it is, do that one first. Then import the other without that option selected.
If you don't want to worry about redirection then you can run them in any order.