@K3DAV and Charles Blackberry,
Have either of you tried using a Hosts file replacement? In canse you are not familiar with the Hosts file, it is a Windows file that can be used to map URLs to specific IP addresses. There is a free Hosts file available that functions like an ad-blocking list. It essentially maps many of the knows web sites where ads are located to an address that defaults to your PC (127.0.0.1). This, when a web site attempts to down load the html for an add (from a known URL that serves ad source), the Hosts file maps that site to 127.0.0.1, and 127.0.0.1 is your local PC .... so the browser then attempts to get the ad from your PC. Obviously, the browser gets no response from your PC .... so no ad is received, and a blank space is shown instead. Sound familiar.
You may want to try installing a Hosts file replacement. It can be installed in addition to your browser's ad-blocking feature and provides an extra layer of protection against any ads that might sneak through your browser's ad-blocking list. Search for: hosts mvps winhelp2002
The URL for the Hosts file replacement I use is:
http://www.mvps.org/winhelp2002/hosts.htm
I have used their Hosts file replacement for a long time with no problems. You will need to be comfortable replacing your current (default) hosts file with the new one (the site has all the necessary details).
Charles: to address your question about one-button launching of Firefox and Hotmail ... why not just create a shortcut to firefox on your desktop, and put the URL for Hotmall as a parameter on the command line? I've done that, and when I click the shortcut, Firefox launches and opens the Hotmail Sign-on Page. You could also put the same shortcut on your Start Menu bar. I don't use Windows XP's Quick Launch bar, but I assume that you could also put a similar shortcut there. The key in all of these suggestions is that you can put a URL on the shortcut's command line along with the path to your firefox EXE. The command line is the textbox in a shortcut that has the label "Target". Just right click a shortcut, click properties, and look at the input box next to the label that says "Target". That's the command line that is invoked when you click the shortcut.
Oh, I just realized why the default browser shortcut in your Start Menu is IE8. It's most likely because IE8 has been set as your default browser. If you make Firefox your default broswer, then I suspect that the browser shortcut in your Start Menu will change to Firefox. Then, you can add the URL for Hotmail to that shortcut's command line, and every time you click that shortcut, it will take you to the Hotmail sign-on page.
If you have questions about the above, or need help in making Firefox your default berowser, let me know and I'll try to help.