Bridge between two wireless cards

Hi!

I have a wireless home network which is set up as ad-hock. In addition
one of the computers has another wireless card which is connected to
Internet trough an external antenna and a distant access point (using VPN).

I have been told that it is possible to make a bridge and include those
two wireless network cards in this bridge. In this way it should be
possible to connect the other computers in my home network to the
Internet (trough VPN)

I have established the bridge and included the two cards like various
instructions say. I have also enabled "ForcecompabilityMode" for both
cards (like some instruction said). But when the bridge is enabled I
loose all connection with the Internet.

When using DHCP the network bridge gets an 169....IP-address. Isn't the
bridge supposed to get an IP from the external network? (the one
connected to Internet). I have tried to renew the address, but I get som
error messages that this can't be done...

Is there anyone who have an idea on what I might be doing wrong here?

terjem