Welcome. And, yes this is the right place for such questions and you can never ask too many. Remember, the only stupid question is the one that goes unasked. Hopefully some of us can help you out.
The problem with conversions is that modeling language is different from one program to another and the program you're importing into will have a problem reading the original program's language and stuff will look like it got photon torpedoed. Unfortunately, I have no idea how to fix this either.
As for importing stuff and the colors get screwed up, this happens. You'll have to repaint your stuff in the program you're using to render the model/scene. It happens to us all, so don't sweat it. That's why you'll see threads where people are doing massive work with converting meshes. It's a huge pain in the ass.
I don't know if any of this helps you or if you're where you were before, but that's what I have. Unfortunately, I've been doing this stuff about 6 years now and I'm still trying to figure it all out myself. :cylon: