Well, I'm sorry, but I'm not going to look into this much. The current server and client are both getting replaced soon, and I just finished getting logins working in the ones. I can assure you that the currently released client is not very interesting, and is nothing compared to the completely redone one that I'm working on. When the transition to the new server and client is made, all existing accounts will be deleted (the new server uses a different database system, and slightly different password storage, so it would be quite hard to migrate the existing information, and there is really no reason to)
For now, you can try and use the account "Craig5" and password "12345" which I just created and tested.
From the server logs, it seems you did actually create 2 accounts, but login was failing because of the password. I would not be surprised if is not your fault at all though, as the server or client could have botched it. Both are quite buggy.
Once the new client is released (I'm guessing a few months from now), I will be far more interested in any issues found.
Anyway, thanks for trying it out and reporting your issues.