SaintFox,

Quote - By the way: I have some clothes here where I am not sure if they are for V2 or V3 (freebies - and I lost the installer...). Is there a neat trick to find out for what figure they are made?

You need to find a unique number that is going to be the same in the figure and the conformer. I think the 'origin' for the BODY is a good candidate.

origin 0 0.442 0.006  Victoria 2
origin 0 0.454 0.002  Victoria 3 SAE
origin 0 0.464 0.006 Victoria 4.2

You will usually find this number just a few lines above the start of the hip actor, but sometimes other stuff like a "CenterOfMass" or material settings are in the way. Inspect the cr2 in a cr2 editor or a text editor, don't rely on the Jount Editor, it can give faulce readings.