PS CS rounded rectangle problems

[ScrapBecca]

I am SO stuck. I have done this before, no problems, but now...? My brain is numb.

Trying to make rounded squares, rectangls, and I use my tool, 75 px, fill black, and make a new layer. Put the rectangle down, but can't select it with the magic wand! Help! I made sure I was on the right layer, but it says it can't select a fill layer. I'm sure I'm just missing a setting somewhere. Can anyone help?

Thanks,
Becca

[ScrapBecca]

Ah, when something is good, it is good. Clipping masks are fairly simple, once you have the hang of it. Apparently, the problem was that I was working with a locked layer (arg) and couldn't move the mask layer beneath it. A little alt+click on the line in the layer palette (after transferring the original paper to a new window and dropping the mask below the paper layer), and voila - ready to merge down and use. 3 steps and oh, so simple. Thanks for the advice!