I think that's what might need to happen. 
None of that coding matches the code they have here. I haven't figured out exactly where it is located (to change the menu button colors and hovers). I inputted yours and deleted the original and it made all my Tags bold. So that definitely wasn't it.
I THINK it might be somewhere in here:
Page navigation CSS
*/
#menu {
	float: left;
	height: 32px;
	padding-top: 1px;
	padding-bottom: 1px;
	border-left: 1px solid #000000;
	z-index: 20;
}
#menu li {
	float: left;
	display: block;
	height: 32px;
	border-right: 1px solid #000000;
}
#menu li ul li {
	height: 24px;
	border-right: 0;
	border-bottom: 1px solid #000000;
	width: 100%;
}
#menu li a {
	display: block;
	padding-left: 15px;
	padding-right: 15px;
	line-height: 32px;
	font-size: 11px;
	font-weight: bold;
	color: #ffffff;
        text-decoration: none;
        font-family: 'Lucida Grande', Verdana, Arial, Sans-Serif;
}
.....etc