Vista - Network Problem with Intel Pro/1000 PT Server Adaptor and SiS 190

I have got 2 network adaptors installed on my computer:
- SiS 190 10/100 OnBoard LAN adaptor (Asus K8S-MX), and
- Intel Pro/1000 PT Server Adaptors
in XP 64-bit, both of the works flawlessly, but it seems that Vista
Networking is buggy or the drivers are not working at all.

Is there anyone able to get any of the above adaptors working?

What I have done is the following:
1. Install Vista Ultimate 64-bit
2. Check out the Network connection status of both adaptors:
a) SiS 190 - (!) does not have a driver available
b) Intel - Limited Connectivity
3. Change Intel card to static IP 192.168.0.10, no dns, no gateway
- result is unable to ping any of the local devices connected to
my D-Link SD-0208 8-port gigabit switch, including:
- Epson C4000 network printer on the same subnet
- A Windows XP client on the same subnet
- A Linux 2.4 IPtable based router on the same subnet
4. add dns and gateway ip to connect to the Linux 2.4 router, still "Limited
Connectivity"
5. remove the dns and gateway and try a couple of the tweaks:
- netsh interface tcp set global autotuning=disable
-
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters\DisabledComponents => 0xFF
6. Unplug all LAN cables except the Vista machine, still get "Limited
Connectivity"
7. Install the PROSET 11.2 driver for Vista 64-bit, repeat step 3, still got
the same problem
8. Replace the D-Link gigabit switch to Planex Gigabit Web Management
SmartSwitch SW-0208G
9. Retry 3), still no success
10. Try to connect to the Web Management Port, still unable to connect
11. Format the hard disk
12. Install Vista 32-bit
13. Check out the Network connection status of both adaptors, where is it
exactly the same as 64-bit:
a) SiS 190 does not have a driver available
b) Intel - Limited Connectivity
14. Downloaded all Vista 64-bit hotfixes available on microsoft.com, install
and restart the machine
15. Retry 3-10, still no success

That means I am unable to activate or use Vista Ultimate Extra. I wonder if
anyone could help?