Double checking the install method for running duel boot

So I have the Knoppix 6.4.4 dvd and I was just wanting to make sure Im not going to bone myself by say .. Killing my Windows 7 completely ..
So I have a partitioned drive already with Ubuntu 10.10 .. but the driver wont unpdate right and the display is out of proportion .due to nvidia card in my laptop.. so
From a completley shut down system I start it up with the dvd in the drive ..let it load up to knoppix and from there I hit ctrl+alt+F2 .. and enter knoppix-installer... Im sort of lost after that ..kinda unsure exactly what to do to maintain a duel boot system on one hdd

Im also looking at the knoppix wiki page for partitioning and such as well.. if anyone has a link for doing a duel boot set up that work let me know thanks

... for HD installation of Knoppix have a look at

http://www.knopper.net/knoppix/0wn-en.html

Sorry, most of Knoppix Wiki is very old and has been usefull for old Knoppix versions, not for new version 6.4.4

Greetings Werner * http://www.wp-schulz.de/knoppix/summary.html
Own Rescue-CD with Knoppix (Knoppix V6.4.4 remaster)