KB 11232 seems to describe what I'm already doing - install a new instance of SQL Express and point BES at it. This seems to be a common situation with SBS 2003. Unlike Backup Exec software, The BES installer isn't clever enough to recognize you already have SQL Express installed and want to make a new named instance for it. If Backup Exec does this, I'm sure it can be done. Considering most of my clients only have ten phones or less and no apps, it seems a waste to install SQL a second time just for BES.