I recently burned a cd of knoppix 5.1, switching from what I previously used as a livecd which was knoppix 3.6

1. On knoppix 3.6, when the livecd finished loading and I was sitting at the desktop, there was an icon on the desktop of my computer's hard drive which i could right click, mount and use all I wanted.
On knoppix 5.1, it isn't there. There is also no link to it in /mnt so what do I do?

2. My tv-tuner card is made by kobian, under the brand name mercury. In knoppix 3.6, because the card is extremely similar to the lifeview flyvideo 2000, I would pick that one, and the Philips MK2 tuner. Using these options, I would be able to use ALMOST all of the channels my tuner could get, a few could not be picked up.
With knoppix 5.1, I go to configure, and pick the same card, and the xawtv config screens shuts down. Is it supposed to let me pick a tuner? Because after I pick a card it just closes. If I try picking up channels, it doesn't work, and aborts.
Can anybody tell me how to manually pick the tuner? What number is it?