InfoPath Dev

I'm trying to create an audit trail when a form is re-opened after being submitted. I want to know who has opened the form and made modifications to it. I was trying to create a text box to put the UserName and a date stamp, but this gets overwritten every time someone opens it for the 2nd time.

Any one have any ideas?

p.s. I don't have any programming skills.

So you want a running list? So that you have a repeating group that holds a user name and date for each person who has modified the form?

I don't know a way to do this without code (or qRules). You need to have a repeating group that holds the user name and date and then insert a new instance of the group each time the form is submitted to hold the data for the new submitter. Does that make sense?