IIDR 11.3.3.3-76 for all LUW Engines is available on FixCentral.
IIDR 11.3.3.3-76 for Netezza
JR59146 IIDR CDC FOR NETEZZA CAN NOT FIND PRIMARY KEY FOR MULTI SCHEMA CONFIG
Here is the link to download:
https://www-945.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm%7EInformation%20Management&product=ibm/Information+Management/IBM+InfoSphere+Data+Replication&release=11.3.3.3&platform=All&function=all