For those of us who are not Photoshop savvy let me introduce you to a fantastic web-site that allows you to fix your photos.
Let me give you an example. Here's the original photo.
Here's the photo after I (ahem!) fixed it with Picnik.
The wonder of Picnik is that it sooo easy to use. No techie speak to decipher. Only sliders to slide this way and that until you get the effect you want.
Summore FREE! Unless you want to upload 100 photos at a time and use more effects in which case you pay USD 24.95 a year.
Try it. You'll love it.
Haha, that makes me sound like a Picnik promoter but I'm not. I'm just a deliriously happy user.