Send an E-mail to PartnerUs@Symantec.com. They will assist you with your log in problems as well as help you with what you need to do to get the process going for your certification.
I would try running IE in Safe Mode, here is a link on how to do it, if you dont know how. http://www.mitchellenright.com/2010/12/28/internet-explorer-safe-mode/
If that doesn't work try either Mozilla or Chrome browsers.