I have visited the Elements forum on two or three occasions, more or less just to see what is there - and I found very little of value - it is nothing like the Photography forum or this Macintosh forum where, for the most part, people are very helpful.
I originally bought Elements because I had people asking me what kind of software to use for printing pictures - mostly mom and pop point and shoots - and I didn't want to advise them to buy a $650 program that they did not really need. I have found that Elements 4.0 for the Mac has "Bridge" for organization and also has most of the basics: adjustment layers, cropping, resizing, text, sharpening, shadows/highlights, etc. It has an adjustment layer for levels, but not for curves. It is probably adequate for most non-professionals.
Hal