Thanks for your help.
In my original post I stated that I had hda1 and hda5 on my knoppix desktop, actually I have hda2 and hda5 (sorry) hda1 is NOT there.
As said I’m new to this linux operating system and I may sound a bit dim! But could someone please explain the following.
1) How do I open a console thus allowing me to type in mount /dev/hda3?
2) How do I use "fdisk -l" to list my partitions?