Vertex Paint problem 2.5.2


So i have a character i modeled in 2.49, when i moved him over to 2.5.2, i can no longer vertex paint him normally. The paint only effects one face on each mesh, in fact it only effects a specific face, not the selected one. Is this just a compatibility issue or is there something i’m missing? I know its not a face select problem, and using the same file with no change in 2.49 works properly. Anyone else having this problem? thanks