I think dxTop will do it also, but I'm not 100%.Fede, any thoughts on screen capture? So far there is only one Home app that can do that and is HOME++.
Just a suggestion.
It's too bad that they can only take screenshots of the homescreens. I assume you aren't rooted? Because if you are, then ShootMe or drocap2 will take screenshots of anything you have on screen.