WINPE deployment on a 802.1x network

Hello:

I am involved in a project to deploy new Vista PCs to our network using
WINPE. We are using certificate authentication via wired 802.1x

The problem I am running into is that the PCs when booting up are unable to
authenticate on to the network to access the resources on our W2003 servers
due to the 802.1x authentication issue.

We had no problem configuring our W2003 server components, our Nortel
switches to make it work and, existing wired clients are able to authenticate
fine. It is only the WINPE clients cannot due to the fact that the OS is not
installed.

What can I do to make this work?

Thanks a million in advance for any help on this issue.

- Greg M.