Strange message using DSCL?

Hey all!
In 10.5,
I'm using Single User Mode to try and change system group permissions.
I have read that I need to use the dscl command to do this.
However, whenever I try to use dscl,
I get this message:

"
Entering interactive mode... (type 'help' for commands)
For single user mode you must run the following command to enable use of dscl.
launchctl load /System/Library/LaunchDaemons/com.apple.DirectoryServicesLocal.plist"

I enter the command,
and then try again to use dscl... but it repeats the message?
I have typed the command many times, ensuring I'm not making a spelling mistake.

Anyone know what the problem could be here?

 

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