[Lynne]

I would strongly suggest you get firebug for firefox to figure this sort of thing out.

The borders on that page are from:

.threadbit .sticky {    background: none repeat-x scroll left bottom #3E3E3E;    border-color: -moz-use-text-color #C4C4C4 #C4C4C4;    border-right: 0 solid #C4C4C4;    border-style: solid;    border-width: 1px 0 0;
....}

.threadbit .nonsticky, .threadbit .deleted, .threadbit .discussionrow, .threadbit .ignored {    border-color: -moz-use-text-color #C4C4C4 #C4C4C4;    border-right: 0 solid #C4C4C4;    border-style: solid;    border-width: 1px 0 0
.... }