It's a bit murky, but I'm pretty sure the Rocket was in my Dock when I installed the 1.0 version of RocketShare.

It really shouldn't matter or it would have said to install the Rocket first in the manual. Without the drivers running, a Rocket is just a 12" long, power draining backplane plate holder. The Manual does appear to assume that the Rocket and RocketWare would currently be installed and that it's necessary to make sure that RocketWare is disabled, especially if doing a custom install.

I needed to do a custom install, disabling the Appletalk(?) installation was did the trick for me in achieving a successful install.