When reading the start up section of the Documentation/CTSManual.doc(see page 5) I noticed that the text refers to FTestSuite.py being at the main directory of the CTS. I believe the manual should refer to COLLADATestSuite.py instead, since that's the existing Python module in the main directory, whereas FTestSuite.py is located in the Core directory.
Here is a snippet of the section mentioned above:
"...simply double-click FTestSuite.py in the main directory where it was extracted..."
and should say:
"...simply double-click COLLADATestSuite.py in the main directory where it was extracted..."