Deb,
Do you have a photo editing program with your PC/Laptop? Windows gives you a really good basic editing program. Mine is called "Windows Live Photo Gallery" and it works by allowing digital photos to be tweaked using sliding controls for your editing needs. The 4 main Categories are Adjustments for Exposure, Color, Detail and Photo Straightening. Under each Category there are different functions you can use.
Where do you store your photos in your computer? What program? It's easy enough to open them with Windows Photo Gallery if you have it.
Let me know and I'll see if I can help you.
