I use BB protect and i believe it only will restore to the BB registered to the backup it made. the exception is a replacement BB. I cannot find a method to do it to a PC.
Did you check your PC for a .IPD file? If you made a backup using desktop manager you may have a file there already. If your thinking the files will be viewable for use on the PC... they wont. The .IPD file is for blackberrys. You can get an ipd reader but thats about it.