Hi,
Please note that the Mitel SME server has it's own mechnism to create and manage user accounts. If you do this on your own e.g. the 'linux' way on the console, you'll miss important features for this account and might even break correct system-updates/upgrades.
If you would like to use the console (or lack a browser), i think the easiest way would be logging in as admin and start the lynx based server manager via the console menu.
Regards,
guestHH