I'm new to Threadless (and *loving* it!). I have some fun ideas for designs but have no idea how to get started. I managed to download the PSD template but don't know where to go from there. Is there a help page somewhere? How do you change the shirt colour from yellow (to something other than teal or bright purple)?? Thanks! Any advice would be greatly appreciated. For those of you who have submitted designs... kudos! There's some *amazing* stuff on here :)