navigating form subforms (4)

Hi I have a main form with a table as its recordset. I have four subforms with queries as there recordsets all quering the same table but four different groups of data. they are linked to the main form with child master relationship. This all works well in regards to data entry and saving to the two tables. My problem is navigating from main table record to a previous record. all subform recordsets remain in the position they were left in. I move to a previous record on the main form I want have the focus on the first control and all subforms also on the first records. Present situation the focus is on the previous records position on the subform. In short I want to move to previous record on the main form at the first control and beable to tab through the main form and then each subform in the tab order. ( clear as mud )

Thanks in advance Bob