Hi Mel,
well the easiest way to tell you is to go to the page you want.
like type in
www.MSN.com
you're using Firefox right?
If so-
go to Tools ,Options & the Main tab
One box should say
Show my home page
and below that
-the next box you will need to click
use current
then it should change and you can close out and then test it by clicking the home button.
IE is quite similar you would go to Msn.com - then go to the General tab and click the use current button.