Ok, so you are using Internet Explorer right now. To use a different browser, you will need to download a new one. One that works well on the site (also the one that I use majority of the time) is Firefox. You can go to FireFox.com
and download that there. You can follow the instructions on there to do that. Then, once you have that downloaded, try to follow the steps in that browser and let me know if that helps or not.