remove and install new versio

[pid1982]

How can i remove the old jdk and the old firefox.
I would like to install the new versions.
I don't know a lot about linux i am a standard windows user.
I have in windows a software part where i can de/install software.

How can i make this under linux(knoppix 3.?

[tdjokic]

K-> System-> kpackage