[newbie] still can't use usercfg!

[brandon]

I asked about why I can't use usercfg - it gives error message saying it
doesn't recognize the command.

someone suggestted I type in:   rpm -i /mnt/cdrom/Mandrake/RMS/usercfg*

I tried that, it doesn't recognize this command either.  What do I have
to do to get usercfg working?
If the command above is correct, WHAT SHOULD I HAVE DONE BEFORE TYPING
THAT COMMAND IN?  Let me remind you that I am NEW to Linux.  Please make
no assumptions.

Thanks,

brandon