I finally found, much to my great relief, a tutorial that made sense and worked (!8-)!) in this forum by Fotiman (http://www.webmasterworld.com/css/4022607.htm)
Thank you so much!
Now, I'm trying to figure out how to have the button stay in the hover state when the user is on that particular page. Or I guess I could design a different image for the active state. But the point is getting the image to stay in either state when on the page.
Here's a portion of the CSS that was used in the post above:
ul#leftnavigation #home a {background-position: 0px 0px; height: 30px;}
ul#leftnavigation #accessories a {background-position: 0px -31px; height: 30px;}
ul#leftnavigation #corpgifts a {background-position: 0px -61px; height: 30px;}
ul#leftnavigation #home a:hover {background-position: -129px 0px;}
ul#leftnavigation #accessories a:hover {background-position: -129px -31px;}
ul#leftnavigation #corpgifts a:hover {background-position: -129px -61px;}
I have tried replacing a:hover with a:active but that's not working.
What am I missing?
Thank you!