The reason your navigation is going to another line is because of the number of links and the width of them. The total width of the navigation is the number of links times the width specified. So for example if you had five links and the width was 100px the menu would be 500px plus any padding or margin. There are two ways that you can adjust this.
The first way would be to modify the site in the SiteAssist wizard and adjust the top level nav links on step 3, if you reduce the number of links you can get it to fit.
The other way would be to adjust the width in the css for the menu, I experimented and found that 81px width seemed to get the elements on the same line, here is the css that I changed:
menu.css (line 53)
ul#cssmw_home > li > span > a {
background-image:url(../cssmw_home_images/center.jpg);
background-repeat:repeat-x;
color:#FFFFFF;
display:block;
font-family:Arial,Helvetica,sans-serif;
font-size:10px;
font-style:normal;
font-weight:bold;
margin:0 8px;
padding:5px;
text-align:center;
text-decoration:none;
text-transform:uppercase;
width:81px; /*this is the width that I changed*/
}
