I have downloaded Milonic DHTML menu today in an attempt to make the menu on our poetry group's web site more inclusive, especially for those using IE 5 on a Mac. My current menu looks like this
The Milonic menu works much better on the Mac but the submenus don't retain their proper width. The only change that I have made, other than the wording, is to make the main menu's positioning relative to make it fit into the menubar div.
To fit in with the rest of the page layout - centering that white area that will hold the content, it has to be inside a DIV somewhere. The centering is another inclusivity approach - working on different screen sizes.