5.5 to 2003

[wanyph]

Hi,

I want to make a migration from 5.5 to 2003
We have one NT-domain over 2 sites.
In each site is a EXCHANGE 5.5 server.

We also have a Win2003 domain.

Site A

1 exchange server 5.5 with 800 mailboxes and IMC
1 webserver with OWA 5.5 running


Site B
1 exchange server 5.5 with 300 mailboxes


When I start the migration using the "move mailbox" method,
I have the problem that many mailboxes are on the old
5.5 server and many are on the new 2K3- server.


1.How can the users connect to both servers using OWA?

2.I heard the the migration automatically changes the
server-settings on the clients (Outlook2003).
But my users use mandatory profiles.
I don´t think that will work.

Can you help me?

thanks