Stop sna by issuing the "sna stop" command 
  IMPORTANT - Be sure
  sna is stopped.
     ps -ef | grep sna*
     If a sna* process exists, use the
	 kill command on the process.

Make a copy of the original file in /usr/bin
cp /usr/bin/snacfgdae /usr/bin/snacfgdae.orig

Copy the new file to /usr/bin
cp ./snacfgdae /usr/bin/snacfgdae

Set the permissions to 700
chmod 700 /usr/bin/snacfgdae

Change the user and group to bin and system
chown bin.system /usr/bin/snacfgdae

Verify that the new file has the correct checksum
sum /usr/bin/snacfgdae
   it should show ---> 20798   740  /usr/bin/snacfgdae

Restart CS/AIX by issuing the "sna start" command