To change the colors of the site you have to edit the CSS file.
Have you looked at the skin1.css file?
search for
A.VertMenuItems
this portion of the code controls the color: COLOR: #ff0000;
change the #ff0000 to whatever color you want. #ff0000 represents red here. Other hex # are available here
http://www.lynda.com/hexpalette/images/nhue2.gif
Learn CSS here:
http://www.w3schools.com/css/default.asp
If you want me to help you with this PM me.