You've got to pay more attention to detail.
You need to do these portions you missed:
Code:
#headerWrappera {
width:100%; /* change to width:76em; for narrow header*/
margin:0 auto;
text-align:center;
}
#navCatTabsWrapper {
width:100%; /* change to width:75em; for narrow header*/
margin:0 auto;
text-align:center;
}
#navMain {
width:75em; /* remove width:75em; for narrow header */
margin:0 auto;
}
You need to change this to 76em:
Code:
#dropMenuWrapperb {
width:74em;
margin:0 auto;
position:relative;
}
You need to delete stylesheet_header_menuBACKUP.css from the server.
You need to change 70em to 75em (two instances) in stylesheet_header_menu.css.
You logo still has faux drop shadow edges in the actual image.
All the above will get you closer, but I think you still will need more fixes.