When installing SBS 2008 with Exchange 2007 everything gets dumped onto the system partition. If you want to move things like Exchange data and user files to another drive then this is how...

1. Launch the Windows SBS Console
2. From the ribbon bar at the top select Backup and Server Storage and then select the Server Storage tab
3. From the Storage Tasks lists click on the required task
4. When the wizard starts click Next
5. You may receive a warning that server backup is not configured. If you wish to continue without a backup, click OK
6. From the list of available locations choose the drive that you wish to transfer the data to and click Move. This may take a few minutes depending on the amount of data to move.
7. Once the data has been moved you should receive confirmation of this. Click Finish

Repeat steps 2 - 7 for the other data you want to move

Wow! thanks a lot. My finally some of my concerns where answered. And i can't believe it that i just found everything here in this forum. Finally, I can now move my Data into another drive. Because the other one is already full. Thanks