We are looking at potentially acquiring a forum which is a Vbulletin 4.2.2 Forum with roughly 100,000 members 100,000 threads and 1,000,000 posts. Ideally we would like to convert from Vbulletin over to YAF as YAF is built in .net which is what our site is builit on. From my understanding the .net framework would give us much more integration capabilities with our current site then using a php forum. I have a few questions below and would love to see if you could help out with the answers to these questions.

-Has anyone out there converted over a Vbulletin forum to a Yaf forum?

-How difficult of a job would is this?

-Are there any tools available to help in the conversion process?

-Roughly how long of a project would you anticipate this to be on a forum this size?

Thanks so much for any help!