Hi An iso of a remastered knoppix is now available to download on this page : http://people.vislab.usyd.edu.au/~joseph/index.html .
It uses chrony for the time aspects and is customized for AccessGrid : an anonymous certificate is installed by default and a quick launcher for AccessGrid is present. Currently, all the images are the ones of knoppix, but it could be easily changed if never someone wanted to. Just boot on the cd and it should be working. However, depending of your specific hardware, some troubles may appear. Check : www.knoppix.net for more information and especially http://download.linuxtag.org/knoppix/knoppix-cheatcodes.txt for cheatcodes usable at boot time. Cheers, Joseph