|most likely your problem with setup is that you have the other pc plugged into the router and the router is doing dhcp [providing a ip address].|
Here is what you can do.
Disable dhcp on the router
Confirm the wireless card ip is not in the 192.168.0.x ip range [or ICS will not work]
Connect both the laptop nic and the pc wired to the router.
Engage ICS between wireless card and wired nic
PC should be set to get ip autoassigned. [ICS will give it a ip]
Check your firewalls that they allow networking access
That should be there all is to it.