Dee:
LOL...I'm beginning to think so, too!
I can't get the gradient thing to do colors, just black and white.
I sure to do need a personal one on one tutorial for this stuff!
Black and white is what you want it to do. The mask layer should only be black/white, like in my example.
Sorry it's not easy to explain this stuff. If I could show you you'd get it in less than 5 minutes, but it's really hard to explain from a distance.
I should have probably asked how much people understand how masking works. In my example you have a Levels adjustment layer with a mask layer. The changes you make in Levels will affect the entire image if you don't have a mask. With a mask, you're limiting the affect that the Levels layer will have. Wherever the mask is white, the Levels layer will have full effect on the image. Where the mask is black, it will have no effect. Where the mask is grey, it will have some effect.
When you create the mask with the gradient tool (using the options I mentioned before) you create the mask such that it starts out white where you begin the gradient and fades to black out to where you end the gradient. You want to make the mask such that it is white where the red you want to remove is strongest, and fades from grey to black over the area where the red fades away. All areas of the image that don't have red you want to remove should be black in the mask.
When you have your mask set up like this, you can then go to the levels tool and decrease the red. Because the mask is proportionate to the intensity of the red, you should see it disappear out smoothly, with no affect on the rest of the image.
I know, I'm being as clear as mud. Has anyone else figured it out who might explain it better?