Cart 66 WP-Favorite-Posts IE Issues

Hi! First of all, I thank ANYONE who try’s to help us with this….we are at a loss! We are using Cart 66 and WP-Favorite-Posts to make a Shopping List for members only. Visitors can apply for a membership and then, access the “make-a-list” functionality.
The website it: http://www.kcstrategicshopping.com
Login: cs Pass: password
The issue is: Within the shopping list option (where you can “add to list”), you are limited to only 50 items that you can add to your list. Once you go over the 50 mark, other items are removed from the list in order to stay at 50. When you hit “View my List” in order to print the list, only 50 show up to print, even though you had attempted to add more.
When using Firefox, Safari, Chrome….all works just fine. You can add 150 items to the list with no problem. You can “View my List” and have all 150 items show up to print.
If anyone would like to dig deeper, I would be happy to create an admin account! I would be so very happy to share a free lifetime account to anyone who can fix this! It would make any Grocery Shopper very happy!
Thanks so much!
Carrie – Kansas