I've had the same issues, however, if you use the cache CD (or iso file) then it gets everything it needs from them.. The only part I've found that it needs to download is
install_flash_player_9_linux.tar.gz from fpdownload.macromedia.com... (and it's SLOW..)
my last install averaged 246 b/s (that's bytes per second) and I'm on a 10Mb/s Downlink.
just fyi
Dan