Fusion 7.5 SDK

Hi there,
I am looking for the Fusion 7.5 SDK (for Win64 -- currently) to write plug-ins for Fusion.
I downloaded the free version but I cannot find anything.
Can you point me to the SDK resources?
Tnx,
P
I am looking for the Fusion 7.5 SDK (for Win64 -- currently) to write plug-ins for Fusion.
I downloaded the free version but I cannot find anything.
Can you point me to the SDK resources?
Tnx,
P