The current download we had was corrupt - Symatec Support have supplied the following,
There is a Technote on this same error which states the download has problems
Document ID: <297843>
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Not able to install Infrastructure Core Services (ICS), Can''t locate CPI/common/CPI.pm in @INC
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Details:
ISSUE: Not able to install ICS, Can't locate CPI/common/CPI.pm in @INC
ERROR CODE/MESSAGE:
# ./installics
Can't locate CPI/common/CPI.pm in @INC (@INC contains: ./authentication/scripts ./perl/lib/5.8.8/aix-thread-multi ./perl/lib/5.8.8/aix-thread-multi ./perl/lib/5.8.8 ./perl/lib/site_perl/5.8.8/aix-thread-multi ./perl/lib/site_perl/5.8.8/aix-thread-multi ./perl/lib/site_perl/5.8.8 ./perl/lib/site_perl/5.8.8/aix-thread-multi ./perl/lib/site_perl/5.8.8 ./perl/lib/site_perl /opt/VRTSperl/lib/5.8.8/aix-thread-multi /opt/VRTSperl/lib/5.8.8 /opt/VRTSperl/lib/site_perl/5.8.8/aix-thread-multi /opt/VRTSperl/lib/site_perl/5.8.8 /opt/VRTSperl/lib/site_perl .) at ./installics line 7.
BEGIN failed--compilation aborted at ./installics line 7.
ENVIRONMENT/CONDITIONS:
AIX 5.2 64-bit
SOLUTION/WORKAROUND:
Install files copied to local disk incomplete or corrupt.
Installation of ICD successful using CD image stored on another server.
I downloaded NB_65_ICS_1.4.37.5_AIX.tar.Z from their ftp site and it worked fine.