You would be better off setting the background image using CSS.  The menu box is already controlled by a style in skin1.css, so just add the background image that way. 
		
	
		
		
		
		
			
				__________________ 
				Padraic Ryan 
Ryan Design Studio 
Professional E-Commerce Development
			 
		
		
		
		
	
		
		
		
	 |