It still doesn't work that well here.
The problem is probably related to the use of inline-table in the mainpage class in vg2.css:
#mainpage1 {
text-align:center;
margin:0px;
padding:0px;
background-color: #ffffff;
display:inline-table;
}
Removing the display statement fixes the problem. It also work in Konqueror and Firefox. I have no idea if it works in IE as I'm using Linux and have no access to Windows.