I'm using Microsoft Back Office Small Business Server 2000. I want to
change the licensing mode from per server to per seat (which I
understand I can do once, and only in that direction).

However, when going 'Start > Programs > Administrative Tools >
Licensing' I get the following error message:

"Not available in Microsoft Back Office Small Business Server. To add
client licenses, choose Manage Server from the Start Menu and select
About Small Business Server."

However, there is no 'Manage Server' option in the Start menu. I've
tried right clicking on my hard disk and selecting 'Manage' and I've
tried the 'Configure Your Server' tool, but cannot find anything
related to changing  my licensing mode.

Anyone know how I can change my licensing mode?