Hi,
I use LabVIEW 6.1 Professional Development Suite but I still belong the "old" CD of LabVIEW 6.0 PDS.
I made the following test with this "old" CD:
When you install LabVIEW, choose Custom installation. In the feature selection tree you should find "CIN Tools" under "National Instruments-->LabVIEW". Click on it and choose "Will be installed on local hard disk".
It should work.
I hope it will help you.