I wanted to provide another option to this, as I couldn't get IE Tab to work for me. I feel like it worked for me in August, but I can't get it to work today.
Anyway, if you have Internet Explorer 11, and probably some previous versions, it has a way to emulate previous versions of IE. I'll try some instructions just for another option if IE Tab isn't working.
1. Open the page in IE.
2. Hit the F12 button, or go to the gear button in the top-right, then click "F12 Developer Tools."
3. The developer interface should display. I think it defaults to the bottom, but I think it can be in different positions.
4. Click on the Emulation tab.
5. Under Mode, change the Document mode option to 8 or 7 (7 seemed to work better for me). You may or may not notice a difference in the screen after it changes, but this is when it started working for me.