Well, in my opinion, hooking a VB class within your own project seems pointless. I suspect you have a different reason for asking this? Here is what I suggest first. Read the 2 read-me files: _ReadMe_GeneralInfo and then readme_COMhooks. After you read those, try to put a sample project together. If you are still having problems after that, I'll try to answer them for you.

FYI: A VB class VTable includes 7 entries: IDispatch+IUnknown. The first method in a VB class starts in the 8th VTable slot.