Unfortunately you cannot download Microsoft updates (for Office, Windows, etc) through Firefox, Netscape, etc. Microsoft has chosen to make them available only through Internet Explorer, so you have to use IE for such.
Since the problems began when you installed IE7 Beta 2, my suggestion would to to uninstall it. That would automatically restore you to IE6 as is was previously, and should correct the problems you're having with IE now. For instructions on uninstalling IE7 Beta 2, click here.
Hope this helps,
I downloaded the beta for IE now IE doesn't work at all - it will open but the forward and back buttons are dimmed. Help, About won't even let me get the IE version number.
MS won't let me get updates for Office using Mozilla or Netscape it told me to download IE and I did...
I downloaded a fresh copy of IE6 but it won't install because it wants me to uninstall the other version and I can't find it anywhere.
Does anybody know how to get Office, Outlook and XP updates using Mozilla or Netscape? I hate IE anyway but am uncomfortable not being able to download updates either automatic or on-demand.