i cant't find the edit in your style sheet;
however, i found a typing error just a few lines before the supposed edit, and this might stop the style from being applied:
/*- Logo -*/
#header h1 {
background: url(images/logo.png) no-repeat;
float: left;
text-indent: -9999pxpx
width: 408px;
}
#header h1 a {
display: block;
height: 101px;
}
this line is messed up: text-indent: -9999pxpx
and it should actualy not be there at all, as it would shift your logo image from the screen together with the text.
so, in total, the top section should look like:
/*- Logo -*/
#header h1 {
background: url(images/logo.png) no-repeat;
float: left;
width: 408px;
}
#header h1 a {
visibility:hidden;
display: block;
height: 101px;
}
good luck ;-)