Hi Patrick, there are lots of documentation and your mentors to help you answer those questions.
It's too much for me to answer on this issue.
What I'm here for, and what this issue is about is getting the build to pass, and optionally to provide a permanant location for your unofficial builds. (ci.apache.org/projects/cordova/weinre/snapshots/ for example would be a permanent location you can refer to in your site docs etc.)
The CI machines do not build official releases nor do they house them. Official releases are releases that have to be voted on by the podling and also the IPMC before being signed and released to an official downloads area and distributed to our mirror system - none of which is a buildbot task.
The builds I have done so far is configured to trigger when a commit is made to your git master branch of the weinre build.
What I think is left to do here is create you an area for your unnoficial builds and configure it to keep say the last 10 or 20 builds, depending on frequency.
Let me know if you want me to go ahead with that. And anything else you think needs doing here. The rest, please talk to your mentors and read various release guides such as http://incubator.apache.org/guides/releasemanagement.html#intro
would be a good place to start.