additionally I have never seen that download manager before, but it opens multiple connections (up to 8 from the screenshots). i would doubt that hotfile would open multiple connections to its own server for a single file, it doesnt make much sense, this looks like some sort of P2P application is it not?
It's not, and hotfile does allow this. It is the main attraction for buying a premium account for any file sharing site. Mediafire does it for free though.