In answer to a Comment:
I use Photoshop Elements 2.0.
Choose the Enhance option > Adjust Color > Hue/Saturation.
In the Hue/Saturation choice box slide the bars back and forth until you like the effect you get.
I also use the Adjust Brightness/Contrast option a lot.
It's just a lot of playing with the options. It's not manipulating, it's creating.
Hope this helps.