[gb2world]

If you look at it with IE developer - the product images appear to get repositioned outside the product table when you do the mouseover. IE has a concept called "Has Layout", and sometimes strange things happen to elements it sees as not having a defined layout. You can see what IE thinks does not have layout in the IE developer.
The following works in IE developer - maybe it will work in reality too - you can try and give the table a defined position:
.products {position relative}