Installed Knoppix 3.4 to my HD which went smoothly but having always used rpm based distro`s i`m baffled by the fact that with apt-get install (packagename) and with apt-get update I get a host of " W: couldn`t stat source package list " with pretty well all my listed sources which are:

# Security updates for "stable"
deb http://security.debian.org stable/updates main contrib non-free
deb http://security.debian.org testing/updates main contrib non-free

# Stable
deb http://ftp.us.debian.org/pub/debian stable main contrib non-free
deb http://ftp.us.debian.org/pub/debian-non-US stable/non-US main contrib non-free

# Stable Sources
deb-src http://ftp.us.debian.org/pub/debian stable main contrib non-free
deb-src http://ftp.us.debian.org/pub/debian-non-US stable/non-US main contrib non-free

# Testing
deb http://ftp.us.debian.org/pub/debian testing main contrib non-free
deb http://ftp.us.debian.org/pub/debian-non-US testing/non-US main contrib non-free

# Testing Sources
deb-src http://ftp.us.debian.org/pub/debian testing main contrib non-free
deb-src http://ftp.us.debian.org/pub/debian-non-US testing/non-US main contrib non-free

# Unstable
deb http://ftp.us.debian.org/debian unstable main contrib non-free
deb http://ftp.us.debian.org/debian-non-US unstable/non-US main contrib non-free

# Unstable Sources
deb-src http://ftp.us.debian.org/debian unstable main contrib non-free
deb-src http://ftp.us.debian.org/debian-non-US unstable/non-US main contrib non-free

# Experimental
deb http://ftp.us.debian.org/debian ../project/experimental main contrib non-free

# Experimental Sources
deb-src http://ftp.us.debian.org/debian ../project/experimental main contrib non-free

# Java
deb ftp://ftp.gwdg.de/pub/languages/java/linux/debian woody main non-free
deb-src ftp://ftp.gwdg.de/pub/languages/java/linux/debian woody main non-free
deb ftp://ftp.gwdg.de/pub/languages/java/linux/debian unstable main non-free
deb-src ftp://ftp.gwdg.de/pub/languages/java/linux/debian unstable main non-free

# More wireless stuff
deb http://debian.isg.ee.ethz.ch/public woody madwifi
deb-src http://debian.isg.ee.ethz.ch/public woody madwifi
deb http://debian.isg.ee.ethz.ch/public woody airo-mpi
deb-src http://debian.isg.ee.ethz.ch/public woody airo-mpi
# deb ftp://ftp.tcweb.org/pub/debian unstable main
# deb-src ftp://ftp.tcweb.org/pub/debian unstable main

# Blades Repository (pppoeconf & co)
# deb http://people.debian.org/~blade/testing ./
# deb-src http://people.debian.org/~blade/testing ./

# deb cdrom:[Debian GNU/Linux 2.2 r3 _Potato_ - Official i386 Binary-1 (20010427)]/ unstable contrib main non-US/contrib non-US/main

Can anyone kindly help me out with some advice as too what the problem might be as i`m fumbling about in the dark.
Sorry if this is a rather long post.