Rounded Corners on Pages

Hi,
You helped me get the rounded corners I needed on a site I’m working on by using the below css. Thank you for that.

However, it’s having trouble with the header background image. I have it “tiled horizontally”, and the css only works on 2 pages, the “home” page and the “about us” page. The rest of the site has square corners on top, the bottom is fine. so the css is not applied to the header background image in all cases. What css if any am I missing? I could use a rounded corner header image I guess, but would rather see the css be applied consistently if possible. Thanks very much for any assistance you could provide.

-Pelyon

http://billrusselldesign.com/sr_volunteers/

div#wrap_all {
border-radius: 25px;
-moz-border-radius: 25px;
-webkit-border-radius: 25px;
overflow: hidden !important;
margin:20px 0px 20px 0px;
}
#header .avia_mega_div {
border-radius: 25px;
}
.container_wrap.container_wrap_first.main_color.sidebar_right {
border-radius: 25px;
}