i'm sorry i didn't get the point you were searching for a gfx download manager.
well, if you dare you can follow this thread:
http://www.internettablettalk.com/fo...ad.php?t=24272
and install a chrooted debian.
it's easier to do than to explain.
once the chrooted enviroment is ready (and after you have run "apt-get update", read carefully the faq) you'll have a whole new world of software, and choosing your gfx dwld mngr will be only a matter of personal tastes (i think d4x is a good one).
regards