Install of MP 1.6 on a Quad G5 under 10.5.4

[Alex Zavatone]

Hi.  I just downloaded the image of MP 1.6 on the newly created Admin  
account of my G5 and ran the install.

Then in the Terminal, I typed:
sudo port selfupdate

To which I get:
sudo: Command not found.


This is a fresh account, created recently to make sure I am not always  
running with admin privs. I've had several system deaths because of  
this.

Anyone know why installing MacPorts 1.6 doesn't completely install  
MacPorts on a freshly created admin account?


- Zav