I need immediate computer help!! PLEASE!!!!!?

Okay. So. My computer won't let me get onto any website I need to access. I'm doing a brochure on a city in Guatemala, and we need to access travel sites to get flights. Well, every time I click on any travel website to have my computer search for the flights, it says "Internet Explorer has stopped Working" I've deleted cookies and temporary folders; i've turned my protected mode on and off and on again and I need serious help because this project is due tomorrow and I'm ready to cry because everyone I've asked has given up all hope. Please, help me!!