Hi Todd,
I was able to bring these in without getting a corrupted JAR error on the import statements (project builds OK.) I use PI 7.11 EHP1 SP3
I think one of the files had a typo, or at least on my system com.sap.aii.af.cpa.svc_api.jar was named com.sap.aii.af.cpa.svc.api.jar
Are your jar files a reasonable size when you download them? Mine range from 100 to 900k each.
Are you zipping them up before transferring out of PI server?