should I upgrade to Recuva Professional?

I used the free version of Recuva to try to recover a photo I had deleted in the recycle bin. I did both the regular scan and the deep scan. The results were: 432 fully recovered files, and 354 partly recovered files. There are many pics it "recovered" that I cannot open because my photo viewer "doesn't support this file format."

If I upgrade to Professional, will I be able to open these "partly recovered" files?

There is no difference in recovery between free and pro recuva. You may be able to open them in a software called irfranview. http://www.irfanview.com/

If they do open, then save them as a new picture