I know that the .5 version has been removed due to an installation error. As far as I can tell (I don't have a brick anyway), mine installed fine. Am I safe to stay with it since everything is fine or should I downgrade to .4?
Everything should be fine; The reason it was removed is because of a coding error with the latest HBC which caused the installer to fail. A new version will not be released until the HBC is fixed.