I encounter the similar problem. My first application submitted via firefox browser via gmail and click the link provided in the email received and within a few seconds alert window popup with message "Personal certificate has been installed. You should keep a backup copy of this certificate" while main window was in step 2 attempting to collect and install your free certificate...
I make another attempt by submitted 2nd application via IE7 browser and a pop3 email address. Click the link from email received and firefox browser opened a new tab and while attempting to collect and install, a pop up window with message: The personal certificate can't be installed because you don not own the corresponding private key which was created when the certificate was requested.
So, now I'm confused which is the problem that cause unsuccessful of downloading the certificate...
