I too am having this issue with the anvil. I have iron ingots and a stone hammer but its not appearing. I also have made all of the other required items for the forge. I also can not make the casting mold (for the foundry) cause of the same issue. Maybe the wiki is incorrect but it says iron ingot and any hammer for the anvil and same items required for the casting mold.
Yeah, I got that when I tried to load the game up. Just checked my email I didn't receive the key, and I have emails from bohemia go back to September but none of them are with a key.