Well I finally found the time to switch over to v7, I already attempted this 2 other times but we all know you don't update a heavily modified site in one day.
At the moment the most important stuff is updated. For now I'm using the standard v7 forum as EXTboard isn't yet available for v7. Still thinking on what to do.
The download database is already good to go and so are most other stuff.
Small things still have to be modified/customized and added. The theme will definantly change but for now I didn't had the time to do it.
If you find bugs, please report theme here: Forum Thread.