2 internet sources, 2 cisco PIX - VPN problem

Hi,
I have:
- 2 internet sources with static IPs
- 2 cisco PIX 501 firewalls
- Terminal server - Win 2003 with 2 Network cards

How should I setup my environment to be able to use Cisco VPN client and remote desktop to Terminal server on either connection ?

I set Terminal server first card to:
IP: 192.168.1.100
Subnet: 255.255.255.0
GW: 192.168.1.1 (first PIX address)
This is (default) connection - If I go to www.whatismyip.com it is showing 1st internet source IP.

and second card to:
IP: 192.168.9.100
Subnet: 255.255.255.128
GW: 192.168.9.1 (second PIX address)

but it is only working on one VPN. I'm guessing Win 2003 is always using 1 gateway, even if request is comming to second network card...
I tried with same subnets - same effect. If I disable first card - second VPN / RDP is working fine.
Both PIX are correctly configured and working fine for "dedicated" computers - example:
computer 192.168.9.101
Subnet 255.255.255.128
GW: 192.168.9.1
If using VPN to 2nd PIX - RDP works fine.

Any help appreciated.
Adam