You can't post either, the forum has rules against it, both models use content from one of the other FF ro Kingdom Hearts games.
However Apz is slowly working on a much improved version that is 100% custom and Kula Wende has apparently gone into hiding.
If the Vincent model is the one from Jedi Academy you might be able to, but I think you may need to ask the original author that made it for Jedi Academy for permission to post it(I know the model has been around for quite a while but we do things by the book here)