How do u add background graphics to tables and Im not talking about a graphic that shows throughout the table.

But take this site for example http://www.devthreads.com/

How do they get The products menu to be curvy at the edges like that? Also, the GREY part where it says products, how do u add an image to that so its not a color but a graphic.

I use frontpage and dreamweaver and I havnt been able to figure this out for weeks. All my tables are square like...I cant make em curvy or have images.


Thanx for the help!