not many questions that would be considered stupid here as far as I am conserned. we where all beginners at some time.
as long as we see that you make an effort we will help. we wont "do your homework" but we are willing to share our knowledge.
Q1. will changing settings (e.g. partition, security) while using Knoppix alter any settings in my pc?
no just for the current session, that is, if you ave not CHOSEN to save configs, home...
Q2. i will read more at the library but there's no book on Knoppix over here? A few good links will be very helpful.
knoppix is a variant of Debian gnu linux, Linux books are easily found in libraries, bookshops...
Q3. can i see my pc files while in Knoppix? How?
just open them from your filemanager (konqueror). rightklick and choose open with... OO is on the CD so..
Q4. any good tips on how to go on from here?
read what you find interesting in these links. .
have you tried the links on top called docs?
http://www.knoppix.net/docs/
other than that you have the howtos, minihowto's and guides you find at TLDP
http://www.tldp.org/
http://www.ibiblio.org/pub/Linux/doc...-formats/html/
http://www.tldp.org/LDP/intro-linux/...rg/guides.html

as you see the documentation is there.
it is sadly spread over a HUGE amount of text...
there is ofcource other forums like this in many languages...
just ask and be as detailed as you can, the more we know about problem/task... you want help with the easyer it is for us both, we can be more detailed and you will have a answer easyer to folow.