Jo Ann,
To check your firewall status, ports open, etc.
Go to Settings, Network Connection, then Properties, Advanced, then in the lower right corner of that window you will see Settings again, click that;
You should see a list of items with checkboxes beside them, if you want total firewall protection, they should all be blank, no checkmarks. Then in the same window at the top you will see a button ICMP, click that and the same with the checkmarks. All blank.
You can run the Shields test again to see if you are protected.
What those checkboxes are, is you giving permeission for other entities to get into your computer. To my knowledge unless you are on a closed network you should not leave any of these open.
Next, have you installed the latest upgrade to Outlook express?
You can find that here:
http://www.microsoft.com/downloads/results...&DisplayLang=en
While you are at Microsoft.com, find the Windows XP security updates and see if you are up to snuff on your security.
I hope this helps.
Terry