Thanks everyone for your patience if you sent me a capx, and I haven't responded yet. I've been busy with the latest update to Spriter, which is available now on our forums.
It seems the main issue people are having is with the latest update requiring both the .scml and .scon formats in C2. Scml for c2's import process, and .scon for the runtime. Also, please make sure in the scml object's properties, the project file is set to .scon instead of .scml.
Roccinio, if you haven't already sent me a capx, please do at email@example.com. The short answer though, is that if you can't set each instance's current animation, entity, etc individually, then there's either a problem with your events, or a previously unknown bug in the plugin.
To everyone, you can expect more updates to the plugin over the next few weeks catching up to Spriter's full pro feature-set. Please keep the suggestions/bug reports coming. Also, let us know if there's anything in particular you'd like future tutorials to focus on.