Hi Renzo,
The keystore password is the default one: "changeit"
The repositories are now ok and working.If you manage to get the keystore registered in the jdk certificates it should work, because you don't want to change anything in the repos, maven will only check and download artifacts from there.
About guvnor and eclipse, all the processes are being displayed here, make sure that you have the latest plugin version, the model project also in your workspace (inside the processes we are using classes from the model project) and the latests drools & jbpm5 runtime configured inside eclipse.
Cheers