I just downloaded it from App World as well - 1.8.0.49. I actually stumbled upon it when I tried installing 1.8.0.31 and didn't know of the keycode limitation, so I didn't do the trick. So I went to install the older version and noticed it in App World.
I hope the notifications work.. I installed the beta and it was a mess to finally get my notifications to come back to 1.7. I am gonna chance it again.