Favor: Screenshots for Mockups

I'm having some trouble getting screenshots while in the CC. If anyone is able to take some screenies, I'm looking for six shots, two of each model (male, female and huge) in plain white tights, white bald head on a medium toned CC background, a front facing and a backside image. I want to use these to create some mockups of suggestions for new skins for the CC.

Short story long, I've compressed my physical desktop down to one monitor, mouse and keyboard and am using a KBM to toggle between a PC for entertainment/writing/bookkeeping and a Mac for editing/graphics production. I'm using a mac keyboard. And the F13 button for some reason does not register as a print screen button. Additionally, other than PC paint, I currently have no graphics software on this Win 7 machine. So I'll be doing all my work on the mac.

So anyways, turning to you folks out here in the community to see if anyone would be willing to help me out and shoot the six screens as described above. I'm just after the character models in a neutral setting from head to toe so I can do some masking and play with some ideas. Linking to the images or embedding them in your post should be sufficient enough as I will just grab the jpegs that way.

I promise to post results when ready! Thanks in advance to whomever can help!