If you can't access the jbpm-console, that probably means it could not start up the server / deploy the application. Could you take a look at the server log to see if there are any exceptions? A common issue is that there already is another server running on port 8080, which prevents the JBoss AS from starting up.
Guvnor integration (so you can load your processes from the guvnor repo) is currently being worked on. It will be added to the installer this week. Currently, the installer loads the processes from file system (the resources directory in the sample evaluation projects). The recommended approach will be to deploy to guvnor once the integration has been added again.
The Drools Eclipse plugin does not support conversation / choreography. We are working on a full BPMN2 editor but this will only be available in the future. Swimlanes are not graphically supported but you can specify a swimlane as a property of human task nodes
Kris