[amxfan]

the site in the link you provided has two lines on the bottom one red and one yellow to change the red one
I think you change that in your skin1.css under .HeadThinLine
if you wish to add the yellow line under the red one like the one on the site you provided
open you skin1.css file and add this to .BottomBox

border-top-width: thin;
border-top-style: solid;
border-top-color: #what ever color you want;