Oh, those just are normal screenshots. I uploaded my screenshots to http://beta.photobucket.com/
and use the editing tool that the site provide. Is very cool because anyone can get nice results in just a couple of minutes.
Even for those who can use photoshop and are lazy - like me :P - may become pretty handy.
That's me, doing some silly jokes to my friend Sabri:
Same pic after a filter and a frame:
The "dancing over the table" original pic:
Just some overlay, and color correction. The gloss in the outfit is the only non-automatic thing there.
Go check the site, and have fun!