Just posted an update for Centrafuse, to version 4.4.2
This update can be downloaded and installed by pressing the "update" button in settings. Just follow the onscreen directions and you're all set.
The update fixes some missing pieces in the Market app, re-enables in-place app updates and now notifies you when an installed app has an updated version available. So The Centrafuse core, and all of the available Market apps with notify you when an update is available and you can compete the update directly from the Centrafuse interface.