Spent about two days off and on attempting to install wpmu in a subdirectory of my deluxe hosting account with static IP using an aliased domain name. Boy what a headache that was. No need to list the 500 different failed things that I tried. 8(
I then decided to try installing it in the root of my hosting account on the primary domain.
Yesssssssssss...It installed and fired up without a hitch. Just make sure you follow the directions to the T. Directions--> http://help.godaddy.com/article/5072
I would also suggest waiting at least a few hours after you set your wildcard before you attempt the installation. I'm not sure if propagation is an issue with setting up a wildcard but why suffer the frustration.
So anyways...Get your deluxe hosting with a static IP. Set up your wildcard on your A host. Go catch a dinner and movie. Then do your install when you get home.
Mike <-- Fan of GoDaddy 8)