Thanks John (and all who replied)!!
I was slightly confused based on this response I had received from NewBlue: “Yes, our installers have included both 32-bit and 64-bit versions for Vegas Pro since Vegas Pro 8.1 (64-bit) was first released.”
But I think all that means is that the installer only installed the 32 bit version of the plugins, once it detected that I was using the 32 bit version of VegasPro10.
Again, thanks to all!!
Jrvid