I notice the bug report is still open. Torben indicates that the workaround is to get someone with cvs access to do some cvs work and then wait a day for the repository to build (presumably this would build 5.1.7 of the notifications package and place it in the location that allows it to be downloaded by the Automated Installer /acs-admin/install).
How do I request someone with cvs access to do this work?