regarding google docs, it seems the documentation changed in the new version (6.X) those are the steps for Installing Google Docs Integration in the recent version:
Regarding the rest of topics, some of them are upstream issues in the sense that we are able to reproduce them in the Alfresco software before the Bitnami customizations. We already reported them to upstream developers, for example the one about users not listed in the user view.
In order to maintain the one topic per case, let's try to solve the issue with Google Docs in this thread, if there are other issues, can you please create a separate case? With regarding Google Docs, please, try to follow the above updated guide, if you receive any error in some step, please paste here the error in order to have more information to solve the issue.
Carlos R. Hernández