Lost licence and order number during hardware upgarde help?
 

I thought I copied everything, but alas I didn't, what sort of information do I need to provide to elicence to prove that I did indeed buy the game?

This is for FOF2007 in case you were wondering.

They will usually listen to what happened and grant you a license if they feel your telling the truth, and remind you that you can't do it again.

This happened to me when a HD crash took my license with it of course. I just sent to them the purchase order number email and explained what happened.