Boardnation -> Vbulletin.

[Shana]

Can vBulletin do this? Like, the convertor or whatever. Currently my boards are at www.boardnation.com and I was wondering if there's some sort of way to not lose my data when I switch over to vb?

Sorry, to be clear, it uses: http://www.simplemachines.org/. Didn't know they run SMF.

[bitdefuser]

Do they let you have SQL access?
If not, you can't do it.

Do they let you backup the database?
If not, you can't do it.

There has to be a yes to at least one of those questions or you can't do it.
Try contacting them if they won't let you do it yourself, they might do it for you.