user accounts

All of a sudden my computer had two accounts. Guest and my original account, so I deleted the Guest one but now, every time I boot Windows XP I have to click on my user before it loads the interface. There is only one option but I have to click it. Is there any way I can get it to go back so it loads entirely without making me click on it?

Go here http://www.microsoft.com/windowsxp/pro/downloads/powertoys.asp.
Download that, and in TweakUI, there should be an auto login option.

Or you could just not set any password to that account and disable account switching.

How do you disable account switching?

Control Panel --> Admin To0ls --> Local Security Policy | Local Policies --> User Rights Assignment:

* Log On Locally = remove guest.
* also you can add Guest to Deny Logon Locally

A few other things that are good:

Click on Security Options and Rename Guest Account and Rename Administrator Account, as well as Disable Guest Account. Renaming the admin account is always a good idea. Default is always "administrator", so you can add an extra level of security by changing it to something not so obvious.