I have been doing a migration from an SBS2003 to SBS2008 server using the standard SBS2008 migration install using the Answer file.
The first Migration I did worked OK, but then just as the install was finishing the Raid screwed up, and I found I had faulty drives and the data was mashed.
So I had to manually remove the newly created Domain controller in AD on the SBS2003 machine, and seize the roles etc. This all went OK.
I then installed SBS2008 again on the replacement drives, and the install went through OK this time. One thing I did was to change the name of the new destination server on the answer file, as I thought that there might be problems if I had not deleted everything correctly from AD for the original desination name.
One thing I didn't think about was the new Exchange server site and connectors that were created on teh first install, so after the install, I have the new Exchange server called SBS2008 and when I go into Exchange manager I see references to the original name (SERVER2008) which of course cannot be contacted. I can't see any way of deleting this.
And also, there is a 2 way Exchange connector to the original name SERVER2008, and I can't figure out how to delete this and add a new one for the correct server SBS2008!