FlashGet is a download accelerator made by Jetcar. I personally don't trust the program much (programs like this just seem iffy to me), but most people seem to think it's relatively safe. In my eyes, the program you should worry about is Spyware Terminator. It's a subpar program (once considered rogue anti-spyware) and anything it picks up has a chance of being no more than a false positive. It's possible that one of the FlashGet files is considered spyware, but there's also a good chance the Spyware Terminator made a mistake. If I were you, I'd stick with Spybot.