I am glad you are legal, Tom. Enjoy Riverview, the fishing there can be beautiful along the banks, especially at dawn or dusk.
I made a rules thread just tonight that actually addresses the issue when people aren't playing legal copies. I prefer they keep that to themselves, as I'm not out to solve the problems of folks who do pirate. I think there should be some limitations when they don't buy the game.
I only mentioned this because the possibility that your dilemma was due to piracy came up, and this thread will be a good reference to legal folks who want to download the addon