Photoshop help

[morninghood]

I'm trying to make flyers in photoshop - but I don't know how to do the layout so I get basically four postcards to one peice of paper. I should have the image made this week - is there anyone who could either tell me how to do the layout (I imagine it can't be that hard, I just can't figure it out) or do it quick and send it back to me?

Thanks!