1) the email code should not be in the repeat region, it should be left before the doctype tag.
2) In the Universal Email wizard, click the To button to set the to address to use a recordset loop.
3) The order of the code will need to be changed slightly. right now, the code for the rsOpenOrders recordset is before the update record code block, you will need to rearrange this so it is after the update record code block, but before the Universal email code block.
the code order should be:
update record
rsOpenOrders recordset
Universal Email