Dang, it just doesn't work. Robert, I tried the CalebTheWizard converter two times now, from Vanilla v2.1.x to phpBB v3.0.12 and directly to v3.1.1 with some modifications to the script, but there are errors/incompatibilities preventing a usable conversion.
I have posted my findings in the Vanilla 2 to phpBB converter?
No idea which part could be causing the problems, either differences between Vanilla v2.0.x & v2.1.x, phpBB v3.0.11 & v3.0.12 or ADOdb 518 & 519. It really is crazy, is seems most of the conversion would work out but some errors/incompatibilities are preventing a usable outcome.
No idea, what o do now, I'm clearly not qualified to start tinkering with the code and trying to fix that on my own.