Actually, its me who teaches the PSP classes, not Deb - she teaches PSE!
But, anyway, it is definitely worth checking out the classes. There are three levels, beginner, intermediate and advanced. The beginner class covers all of the basics, including layers and the different palettes available in PSP, and sounds as though it would be perfect for you. You can find more info here
Please note, though, that there are NO PSP classes in April as I am away on holiday so the next class will be in May.