Mepis Instalation Center, Gets it on to your hard drive and acts as a rescue disk.	apt-get a powerful CLI package program	dselect an easy and informative way to get software onto your system.	kpackage a pretty way to do what dselect does. Synaptic is much the same.

See these notes for web install caveats. Unstable can break your heart, and the second CD might be the easy way to go.

There are notes regarding dual boot and other issues on the Mepis Installation Center screen shot page