All right, here's my entry (first time) and it was performed at work on lunch...racing like crazy. I'll have to come back and submit all the details of what was modified...as I'm well past my lunch hour.

The original above.

My modified one. I used Photoshop CS3, as mentioned above, the details will follow later tonight.
...okay, I don't see the boss around. Here were the steps (CS3 PS):
- Flipped image (..because I can?)
- Duplicated background
- Played with brightness/Saturation
- Found a decent colored sky, took a sample with the eye dropper
- Selected gradient tool, pulled from top-center down to the skyline
- searched for the original photo, opened it, turned it into a black and white w/slight adjustments
- Dragged the B & W over to the color side and sandwiched it between the background and my duplicated color photo
- selected the color layer and started to erase over the frame area and the girls (drawing out the B & W
- That's it!!