You can use any ordering you like, as long as it is consistent in all your recordsets.
(presumably i need a 'current item' recordset. Would that be filtered on 'itemid') 
I would have thought you already had the current item recordset. the current item recordset would be:
rsCurrent
SELECT * FROM tableName WHERE idColumn = paramID ORDER BY idColumn
Variables:
Name: idColumn
type: Integer
Default Value: -1
Runtime value: $_GET['itemid']
NOTE: I noticed a problem in the original recordsets, i have updated them.
