I get your frustration, just Breathe... breathe... take a few moments away from computers. They can be a pain..
I'm at the work ATM so can only login to try to help every now and then.
I didn't know free Fraps version does not allow JPG anymore? That's not a big problem though. You do have a .BMP screenshot right?
Open it in Microsoft Paint (included in Windows itself) and then use the "Save as.." function to save it as JPG (or PNG or any other compressed format that RD will take.)
Or just sit in the sun for a while and enjoy a drink first..