So i've got a bunch of custom models that I was using on G3.5, anyone know whether you can use the same files for G4? If so, what folder to you have to put them in and do you have to change the extension?

I have seen a post in these forums that can probably be found with a search. It says that many models can be used from G3.5 but they may require some adjusting to fly correctly.
As for the rest, that info may be found in a search also.

Perhaps someone will do it for you and paste a link for you or copy it in or flat out spit it out for you.

happy daze.