change the query for the WADAvendor_notes recordset to:
SELECT note_id, vendor_id, date, user_name, note_text FROM vendor_notes WHERE vendor_id = Paramvendor_id_WADAvendors ORDER BY note_id ASC
then create a new rarameter as:
Name: Paramvendor_id_WADAvendors
Data Type: Integer
default Value: -1
Run Time value: $_GET['vendor_id']