How to Rotate Brush and/or Layer in Photoshop CS2?

Ok, so I made a brush some time ago and I’m using it right now, but I’d like to rotate it (it’s an 8-pointed star-like thing, sort of like a compass rose, but I want to turn it about 20 degrees clockwise). Can anyone tell me how to do this?

Also, how do I rotate a single layer?

Please keep in mind that I’m relatively new to Photoshop… simple, clear instructions would really help me out. Thanks! =)

How do you download brushes for GIMP and/or Adobe Photoshop Elements 6.0?

I recently downloaded GIMP. I believe it’s version 2.4. I also have Adobe Photoshop Elements 6.0. I’ve been trying to download brushes to use, but they haven’t been working. Can anyone give me clear, step by step instructions on how to download and install them? I also looked at a tutorial that said to install them in your “brushes” folder. I looked and there are no brushes folders. Any help?