Why do Import scripts have to be so ...

[Erwin]

There's an official UBB forum importer. Just use that. I think you can import into a forum only. I've used it.

There's an unofficial IB importer. Not sure how good it is.

For ezboards, Jelsoft staff have to do it for you. They are quite good, and they can import threads into a specific forum with no problems (but not members). I've used this too.

Also, I've edited the title of your thread. Import scripts do not have sexual preferences.