I have users using Outlook 2007.

We are in transition of moving from Exchange 2003 to Exchnage 2007.

The issue that I'm having is that any users that has a mailbox on Exchange
2007 cannot see the schedules of people that have mailboxes on Exchange 2003
in Outlook Group Schedules.

I really need to have this to function correctly.

Any assistance would be greatly appreciated. Thank you.