@Klaus
Did the Migration test show any Problems ?
Nothing unsolvable, for phpBB3 I just skipped a compatibility step in the test scenario, since I know that it needs to be done from a previous testconversion. This step is well documented in the phpBB Convertor Forum.
MyBB converion is dead slow though

but that again is no showstopper.
@crnogorac081: I wouldn't store the PMs here in the Forum. One of the reasons for the move is that the current server hardware is "old" has has failed already a couple of times.
cheers
Klaus