Oh yeah, sorry. I have the field test restricted to customers with current support :-( It's too tough to turn that off for this. Here's the direct link to the installers for V7 and the 64-bit add on.

https://download.dc3.com/field-test/

V7 will install right over V6. Also I hope to heck doing this won't blow the free trial. Unless you really want to do this, and you'd rather test in 32-bits to see how the API works for you, I'd recommend against it.