It looks like I deleted some orders_products information when cleaning product debris from for products I no longer sell. This is for old orders and not critical but I really like to be able to help customers when they ask me what they had ordered previously and some orders show up with no products at all or only a few products that I still sell.

I looked in the orders_products table and there are definite gaps in the assigned orders_products_id numbering so inserting the lost information from a DB backup should not cause any problems but I have no idea on how to go about it.

I have upgraded running 1.3.9d store with missing information.
I have upgraded 1.3.9d DB from test site with missing information.
I have some but no a lot of knowledge if MySQL and can find my way around MyPHPadmin.
I can follow instructions quite well.

Does anyone have an idea of how to fix this?

Thanks,
Marc