Hello, I assume this is very easy to do since when I contact my graphic designing friends they take a second to do this for me. I am getting tired of asking them all of the time so I would like to learn how to do this myself. If I have a background image that uses a blue fading color for example, how can I replace that color with another color? I assume that you use a magic wand and somehow select an option to fill in the color or something. I still use Photoshop 6 please let me know how this is done. Thanks :)

You could select the entire layer and then use Hue and Saturation settings to alter the color of that layer. This might be a little more accurate of a color-shifting idea if there's any sort of texture to that background graphic.

After I select the part I want to alter most of the options are grayed out and I do not see the hue or saturate option.

The option you want is under "Image" -> "Adjustments" -> "Hue/Saturation..."

I'm not sure why this would be grayed out if you've selected an object to modify.

Certain color modes don't allow you to perform certain actions. Try changing the color mode to RGB(Image>Mode) for example, and see if that lets you :)

You will learn that in Photoshop there are 10+ ways to do 1 task.

Image > Adjustments > Replace Color

Thanks I will try those things. So far I am having problems though. I converted image to RGB color and used replace color and nothing happened. I then try to select the image and then replace is greyed out.

Replace will only work if you match the color exactly. Is this a layered PSD file? If not, select the area you want to alter, and paste into a new layer. Follow the_pm's suggestion to alter that layer's color, using "colorize" in that menu, if available in PS 6.