Lee,

I've just run through the videos for moving the live site to a localhost install.

Everything was fine up to the point where I tried accessing the site.

The home page is displaying but I can't log in using any username or password. Host, Admin and my own username and passwords are all not working.
I have a funny feeling that this could be due to the fact that the live site is using AD authentication. How can I get into the site?

yes it sounds like it will be caused by AD authentication. Unfortunately I have not used AD authentication, it sounds like you need to replicate the exact authentication setup on your local computer, it could be worth looking at the other posts mentioning AD authentication and asking the guys there that are running DNN with AD authentication,

Thanks,