I am obsessed with this photo, because it is very hard to get right in PS. The first one I uploaded was using GIMP under Linux. I tried again with PS 6.0 and I think it has come out well. I did a curves adjust for the sky and masked with a gradient. Did a curves adjust for the foreground, masked with a gradient. Then did a second copy of the background layer, adjusted for the moutains and masked everything else. Hope this helps.
P.S. Now go get some Karma points! Every opinion matters, no experience required, it is all subjective anyways :)
I like the composition of this photo. I think with a little gradient and levels work, you could have a really great photo. Here is an example I threw together. I used a layer with a black to transparant gradient and 20% or so opacity. Then used curves/levels to adjust the colors. Hope this helps.