Did you recently upgrade Hijack? I seem to recall I had to make a couple changes to some paths to make hijack downloads continue to work with new Hijacks, which means you probably need jEmplode 47 (is it 47 or 48, whatever it is) ...

http://www.inzyme.com/rio/empeg/install.htm

This was billed as "very alpha use at your own risk", but apparently the risk was pretty low because I haven't heard anyone complaining that it hurt their children or burned down their houses. However, if you decide to have children and they become hurt by this release, I still absolve myself of guilt and/or responsibility.