Quote - Well I'm using the v4 to v3 conversion and then trying to apply a v3 texture....

If you mean the V4_V3 figure, that puts a V4 head on V3 body so you can put on V3 clothes.  It does not allow you to use V3 texture maps.

If you are talking about a texture conversion you acquired somewhere, tell us about that and maybe can be worked out.