Hmm, I'm wondering if this might help you. It might be that I've got the wrong end of the stick though, but it's a useful thing to know if you don't already...
Once you get a screenshot, the way Pam showed you, you could also use the capture button in game. You can then use it as a background for your slides. Do this by right clicking on the background on your slides, if you look through the tabs there is an option to chose an image for background, chose the file you saved =)
Hope this has helped!
Addict x