These releases fix a number of problems:
Firefox users can use the automatic update facility to get these new versions.
Updating of annotation bodies is still not working.
This is the the Annozilla project, designed to view and create annotations associated with a web page, as defined by the W3C Annotea project. The idea is to store annotations as RDF on a server, using XPointer (or at least XPointer-like constructs) to identify the region of the document being annotated.
The intention of Annozilla is to use Mozilla's native facilities to manipulate annotation data - its built-in RDF handling to parse the annotations, and nsIXmlHttpRequest to submit data when creating annotations.
Please use the bug reporting mechanism or the mailing list to discuss Annozilla.