Welcome to the forums 🙂
Now, I used that software a few times, and I didn't like it. The interface was pretty bad, its file-unerase feature was not very good, etc. I think Norton Disk Doctor from Symantec is a better and a more accepted tool for data restoration.
I used NDD for a few years now, and it's great. To undelete files, you can use their Unerase program, but you need to run the Dos-based one (it's included in the software package) to unerase files deleted "a while" ago.