Hi, I'm trying to get through a tutorial at thinkdan.com about making 3D rings and am having some trouble. The basic effect is that you create a ring somehow, then Ctrl+click on the ring's layer to highlight it. You go to the channels palette, hit the Save Selection As Channel button, then you click on the Alpha 1 channel. You then do a Gaussian Blur and adjust the curves. All that works fine for me. The next step where you are supposed to do a Lighting Effect is where I'm having problems. The Lighting Effect filter isn't even available. What do I need to highlight or click on to be able to use the Lighting Effects? I can make them available if I am not highlighting my alpha channel, but then of course the lighting doesn't create a 3D look. If anyone can offer any assistance on this I would appreciate it. I'm using photoshop 5.5 and the tutorial is located at:

http://www.thinkdan.com/tutorials/photoshop/ring/

Thanks in advance,
Josh