ddw, it would depend upon the terms of the sale of the material. Was it an outright sale or sale for a one-time printing with the writers retaining intellectual property rights. If that was the case then they should be paid for any subsequent publishing.
Basically, the paper may have bought one-time-only rights.
I sold recording rights to a song I wrote, one time only with a certain minimum. I retained all rights to the song. when the artist wanted to do a second run, we re-negotiated the contract.
He had bought the right to record the song one time only.
Thats why you should alwayshave a lawyer when dealing with contracts. they can be tricky.

troll