Before you hit that link I posted above to Order History, I would make sure you are logged into the shop first. :)
Karisa, the order history bug should have been fixed four weeks ago. What error message do you get, or is it the generic error page? I did log in under your account and it worked fine. Maybe your page is cached for some strange reason and showing up the old page.
Ann, your shop login is your email and if you forgot your password, just enter your email and it will be sent to you automatically.