Might work and might not

I would suggest you boot with only one pc/notebook first using knoppix cd.
Try netcardconfig again, don't use DHCP, assign ip manually.
Then run Start Knoppix terminal server (on Penguin icon at the bottom).Click okay on every question ask. This will make this pc act as a "DHCP server" and will assign ip to your second pc.

Depends on OS of the other pc (client), if it's Windows, you need to run samba. To run samba, click the Start Samba Server (on Penguin icon). The samba user/password must be same as user/password used to login into your windows.

Then boot the second pc (client).

On "server" pc, open linneighborhood (under internet submenu), click on icon "ADD", you client pc should appear and will list all shared folder. Right click on your preferred folder and mount.

Now you can start working from konquerer. On konquerer, cick devices icon
and you will see Remote Share folder. You will see all your shared folder there which you can manipulate.