Hi,
You can try to dowmload it from www.cisco.com\go\lms
Go to the bottom of the page and look for featured Contents > Evaluate LMS solution > look for
Network Management Evaluation Products > and then Search for :-
CiscoWorks LAN Management Solution (SOLARIS OS) 4.0
or
CiscoWorks LAN Management Solution (WINDOWS OS) 4.0
Many Thanks,
Gaganjeet