Assuming that the Tivoli Framework actually installed and all of the files are
actually there, a good thing to keep in mind: when in doubt, 'source your
Tivoli environent', which is to say, run the setup_env.sh that is in
/etc/Tivoli.
Do this by entering
 .   /etc/Tivoli/setup_env.sh

I'm assuming you are on AIX. This sets necessary envronment variables
that the Tivoli commands all require. Hope you have a better day tomorrow.
Once you get past the Framework stuff it DOES get easier.

Cordially,

Leslie Clark
IBM Global Services - Network & Systems Management - Detroit