See scrolling tool bar across the top.
Go to "Drivers", scroll down and it is the last one on the list.
You have to have Java enabled for the scrolling tool bar to work. I know. I hate it too, and at some point will get a better system.
Actually, your site doesn't work with Mozilla/Firefox, and likely any other browser than IE. Your site was probably developed with Microsoft FrontPage, notorious for writing code which only works with the Microsoft browser.
Lately, there has been a huge surge in interest for FireFox, an excellent alternative to Microsoft IE. As a businessman, surely it is in your best interest to have a web site properly vieweable by everyone??