I've looked at it and I didn't see anything wrong with the code...Then again if it doesn't work then obviously something is missing. Umm...Try this:
Find this code (cut it):
[/code]then place it above this code:
[code]
Now I'm not sure if this will make a difference but you have "if(admin_number" and change it to "if (admin_number". Also change the numbers "00000000" to a valid member's number.
I'll take a look further tonight...