You didn't look closely at the %admincode variable. Don't use spaces. Use the character I gave you.
Note that the way I have it allows a code to be multiple words. I did that because you used $2- to check the password (meaning there could be multiple words). If you only want it to use a single word as a password, let me know and I'll change it to only allow a single word as a password and then you can use spaces in the variable.
