Hi again, jan37,
I can double-check, but I don't think that K3b comes as part of the Live CD. (If it were included, I don't know for sure that you could use K3b from the Live CD to burn an .iso file, even if you had a second CD-RW drive in your computer).
K3b comes as one of the default apps when you install Pardus to your hard drive. I currently have K3b ver. 1.69.0.
If you're using Windows and need to burn an .iso of the 2009.1 Install CD, you can use a program such as Nero or EasyCD Creator to do that. If you need a free Windows app to burn ISOs, I've seen CDBurnerXP mentioned:http://cdburnerxp.se/
I'm sorry I can't verify this firsthand, but we don't have any Windows OSes at home. Hopefully someone here who dual-boots with Windows can help you if necessary ...