Can't help you with that one I'm afraid cuz I'm still pretty new to KNoppix, but learning fast. However someone will know the answer.

As for the write access to your disks. You can enable write access to ALL disks which will allow you to write to all windows partitions and Linux partions except NTFS.

Right click the drive on the desktop then click properties. Next select unmount then right click it again and click properties, this time click the 'DEVICE' tab and uncheck the 'Read only' box.

You should now be able to write to that drive.