Window skins menu

Hi again guys, i got a lot of cool windowskins, and i want to make a menu inside the menu window, that can let you choose the skins at anytime you want in the game, how can i do that? please help me
Example:

Menu:

Object
skill
equipment
status
Options (or something like that, inside here can go the skins selection)
save
quit

btw, maybe this other question was already answered, but how can i change the image of the character in menus, so that it shows a picture (maybe a face) instead of the character?

Thanks guys, see ya