issues with zbrush import/export with uv,s

After working on my low poly model in 3ds max i decide to export to poly paint. I uved it and exported it. i used poly paint but couldnt make a texture of it in zbrush. so i looked at some formus videos etc. and saw that you could overide your uv,s to get a texture map by overiding the mesh in the sub pallette with the low poly mesh unwraped. so i did this and when it asked to overide and give high detail i said yes. the problem is that my polypaint sill is all messed up. does anyone know how to fix this so i could export my polypaint ?