If you are going to ask for help, at least provide some actual information other than "WAAAAAAAAAAAAA IT WON'T LOAD".
Hmm, I don't recall saying anything like "WAAAAAAAAAAAAA IT WON'T LOAD", but here is what I believe to be the relevant information. If there is something else, please let me know.
1. I had a working game, all SPs and EPs, mods, CC and AM.
2. I installed Showtime from the DVD. When it asked to perform updates, I let it.
3. I started Showtime from the Launcher icon and got the warning about an outdated mod, so I just quit.
4. I ran the AM Updater and let it install the latest AM test version.
5. Now the game just sits at an un-moving progress bar, but if I take out AM, it starts.