If the problem is collapsing of the right column in IE on site
www.stmaryssocialclub.com/
then I think the problem is made by the top right Events module. You should disable it or fix it for IE. Maybe to somehow make it thinner?
Perhaps the Events module is just an iFrame. Try to reduce the width of the iFrame:
Code:
<iframe src="https://www.google.com/calendar/embed?title=Upcoming%20St%20Marys%20Events&mode=AGENDA&height=300&wkst=2&bgcolor=%2333cc00&src=events%40stmaryssocialclub.com&color=%232952A3&src=en.uk%23holiday%40group.v.calendar.google.com&color=%232F6309&ctz=Europe%2FLondon" style="BORDER-BOTTOM: #777 1px solid; BORDER-LEFT: #777 1px solid; BORDER-TOP: #777 1px solid; BORDER-RIGHT: #777 1px solid" width="220" height="400" frameborder="0" scrolling="no"></iframe>
As you can see it's currently set to 220.