You should be able to open any office program and go to
help and about and you should see your number there.
Erm, no, he can't. That's the Product ID, *not* the installation key - they
are NOT the same thing at all.
If
you still have troubles you can call microsoft and tell
them what you do know and they will ask you for a number
off the cd itself and could generate you a new key.
/What/ "number off the CD"?! There is no number on the CD! They will ask you
for the PID (see above) and will then generate a new key, at their
discretion as Office 2000 is no longer supported. If it's OEM the OP should
refer to their OEM supplier (usually the system manufacturer).