Hey, I guess this is sort of a security topic as it is to do with loging in.

I am running Windows XP Media Center Edition. I currently have user must press CTRL + ALT + DELETE when loging on. I would like to no if there is a way to get them to select a user group e.g. User / Administrators etc... and then type their user names and passwords...

if you have any idea i would appriciate it......

No i dont think so you should be able to log into an administrator.

Windows only allows you to log on a specific user. Multiple users could have a common account, but an account cannot have multiple passwords. This is the same of all OS I know of.

The key issue is that each identity is associated with a password, not the reverse. This means a password cannot be resolved to a user name. This would be a security problem.