How can I install program Angstrom in my BB?

Hi.
I installed
Angstrom-Beagleboard-demo-image-glibc-ipk-2009.X-test-20090111-
beagleboard.rootfs.tar.bz2

but there is no download instruction like dkpg, apt-get, yum, rpm.
And other instruction also not installed. like ifconfig, ipdown, ipup,
route.

How can I install that things in console.

thanks. have a nice day.