Because Windows Operating Systems saved data to the first available drive space on your hard drive it is likely that the older profile has much of its data overwritten already. I know from my data recovery experience, you can often recover say picture files and the thumbnails look great, but much of the actual picture has been corrupted by new data that has been written to your drive. The thumbnails look good because they are stored in a header in the file itself and can often be recovered even though the rest of the file is corrupted.
It doesn't look good for your data, but you can try other recovery program as well. Sometimes one program has better results than another.