I'm evaluating PDN for use in an upcoming project.

1. installed Python 2.6.5
2. installed PDN - copied the clr.pyd file to Python's DLLs folder, and copied Python.Runtime.dll to Python's root
3. copy my dll (VS2010, simple C# class lib with two methods) into Python's root.
4. start python (using the python.exe from 2.6.5, not the one from PDN)

>>> import clr
>>> clr.AddReference("My.DLL")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
System.IO.FileNotFoundException: Unable to find assembly 'HFF.Helper.Utilities'.

   at Python.Runtime.CLRModule.AddReference(String name)
>>>

I assume I'm making some incredibly obvious newbie error.  Can anyone point me in the right direction?

And, where can I find good docs/reference/discussion on using PDN?

thanks - Jason