I have released Jobline for Mambo 2.0 today. This is a job posting extension for Mambo 4.6.3 and above. It is a port of the Jobline for Joomla 1.5 extension that works well with Mambo and hooks into the Mambo language manager so that it can easily be localised for your language. You can read more about this extension here and can download it from the Mambo code forge.