How can i do this if possible?

Bloonie

I have created an image on paint of what I want the actors to be playing on. How can I use that image as a background?? I have looked on many videos and none help. Also is there a way to have your actor a figure and not a box?

Nmdogdude

I think you just hit the (+) in the actors tab, and drag and drop your paint file to make it an actor.(remember to save it as a .png) and just stretch it to make your background.
You can also go into the layers tab and put different actors in different layers.
By your 2nd question are you referring to collision shapes? currently Gamesalad only supports square/rectangle and circles.
Hope this helps