[Plugin: NextGen Gallery] Columns don’t display properly in IE

Here is the gallery I’m working on.

I have set the gallery to display 2 columns in the NGG options and this works perfectly in chrome, firefox and safari, however it does not display two columns in IE 8 or 7. In IE it just displays as 1 column.

As you can see I have used custom fields to include decriptions, price, catalogue # etc, and this involved some CSS and template customisation, however I cannot seem to find where I went wrong to wreck the IE display!!

Can anyone help?

Thanks in advance!