I have same problem. Shows in mod list, but no luck bringing up the in game menu. I have also tried Too Many Items with the same issue. Different buttons to open menu, yet I see nothing for either. I am playing on steam, and not sure if thats the problem. I haven't tried any other mods yet, but Im only interested in the sledgehammer that I was basically cheated out of when the game flashed to windows and I was bitten.... Anyways, an inventory editor would be fine too, if someone knows that