hummingbird fails to load as a plugin

Your behind the scenes suggestions - upgrade to pro, add hummingbird are all for naught if when I try to add hummingbird it takes me to yet another login screen and never, ever loads. It's a failed loop.

Because HB hasn't loaded I had to select Smush Pro - which is not acting like pro either - what gives? Is it just because I'm in trial? You have my CC info.