David,

Look at the BeforeNavigate method, there's at least a chance that the URL contains the information that is about to be posted.

>Thanks for your reply, Dave. Sorry for not explaining what we are looking for more accurately. We need the actual post values that are submitted to the web server. For example: txtID=1234&txtFname=John&txtLname=Smith. I've looked through the document object model but can't figure out how to access this information.