I'm doing great Ram; hope you are too.
To be more accurate, that opens the form with the old values in it but moves to a new record (ie you can still navigate back to older records). If you only want to add records, either set the form's Data Entry property to Yes or use the data mode argument of OpenForm to open it in data entry mode. Either would be more efficient if you didn't need to be able to navigate to older records, as the form wouldn't load them.
That said, normally a form and subform are kept in sync with each other via the master/child link properties of the subform control. Are those set correctly? It doesn't sound like it.