orders 72-128 are showing in the power store admin?
What paypal system are you using? Paypal Payments standard?
Standard uses an IPN post to save order details.
when an order goes through the paypal account, it will post the order details using IPN. This can be any order made through the paypal account whether it comes from power store or from ebay or another page you may set up using paypal payment buttons.
It would be best to have a separate account used fro ebay orders and another account used for power store orders. that way an IPN post wont be made when an ebay order is placed.