Another thing that happens with some frequency is that the sponsor will update their listing and request that we post the new version. The most recent version will show up as a New sweep, and the original one will move to the expired file. You may want to search for the name of an expired sweep to see if it has been relisted. If this does not address your concern, please PM me with specific sweeps that you feel are incorrectly listed as expired and I will look into the matter for you. Thanks ~ GSW