Shelby Loxely

I create the build then click generate. The sculpt map is generated and I am directed to the website where the image map appears. The problem is I am unable to upload it properly. I've tried to save it using .bmp, png and tga. When i go to upload it the "use lossless compression box" is greyed out. Clearly I am doing something wrong. The Prim Generator is similar to the Prim Oven, etc. in that it takes several prims that you make using the generator and turn them into one. I'd appreciate any help, any help at all. Thank you