Header Background Colour

You should read this thread http://www.joomlart.com/forums/showt…l=1#post183762 to know templates need to edit.
You should also install Firebug in Firefox, a wonderful tool for checking html and css.

This is file which you need to edit: skin\frontend\default\jm_morganite\csstheme.css

Code:

#ja-header {
	padding-top: 15px;
	background: url(../images/headermain-bg.gif) repeat-x left top ;	
}