I have no idea what you are trying to explain here, but I know what the RENEW button is suposed to do.
If my no idea has a probable answer, put the RENEW button on the Browse (Use the NT 'Copy' Button for this), ie it will automatically create the new record as a match of the old one which can then be changed, and then when you press save it will save the new record.
Anyway, I gave it a go.
Cheers
Charl