if you go to your 'Personal Web Manager' within 'Microsoft Personal Web Server' and select MAIN there is a STOP/START button. If the button says START click the button and it will change to STOP.
The text above it should say web publishing is on. Your home page is available at:
http://[machine name]

It is the machine name that you need to enter. Otherwise enter the word 'local'. I hope this helps.