64 kbps from a 576 kbps connection?
Some confusion here I think....
You connect at 576 KiloBITS per second.
You download at 64 KiloBYTES per second.
The point being that there are 8 bits to a byte, giving a maximum theoretical speed of 72 Kilobytes per second.
You will be unlikely to get 72kbps as congestion between the server and you, error correction etc will all eat into this, but a stable 64kbps is pretty good going. You'll be lucky to get much over 5kbps with dial-up.
pilot-lite