Virtual Drive Pro HELP!!!

Any VDP wizards out here? I have 2 HDD's that I took out of a dead pc. The drives are ok, they do work properly. I put them in a new pc and everything is good EXCEPT VDP. There is a prog on the C drive that requires data discs. The way we had it setup in the old pc was that the prog and VDP were on C and all the data discs were loaded on D drive. It all worked well, untill now. For some reason, VDP will not load the data discs into the virtual drives. This leaves me with a $4000 program that is useless. Cany anyone help??? BTW, I DO NOT have any OEM discs for the prog, so I want to be VERY careful with these drives. Thanks!!!