I have a small forum that has about 6k threads and 50k posts, 1. Is it simple to transfer VBulletin 4.0 forum to XF 1.5? Is there a good straightforward importer that a "non-expert" can use? 2. The forum threads are of the type - "abc.com/8799-how to get-stuff-done" Can the urls be kept as-is after the transfer. That's the big question because I want to avoid redirects.