Howto apt-get under QtonPi?

Hello

I'm new in this topic. I managed to install QtonPi and configured ethernet also.
But when I'm unable to install any package with apt-get, because QtonPi does not recognize the command.
Please help, how can I make it work? ( kernel version: 3.1.9+ #41 Mon Feb 13 18:50:12 GMT 2012 )

I figured out, QtonPi is based on Red Hat and not Debian, as I thought.
That's why i could found apt-get.

Based on QtonPi documentation, it's based on Wheezy, which based on Debian...