Was this with our most recent release -- Tahoe v1.4.1? Could you tell me more about what went wrong? Perhaps by opening a ticket on http://allmydata.org so that the other people who are responsible for making it easy to install can see the issue.
I'm sure that it isn't all there yet, and your bug reports would help, but you might be interested in the overall approach -- applying the principles of test driven development (if it isn't automatically tested by your buildbot, then it isn't done) to packaging.