Server 2003 SBE to Plain 'ol Server 2003

3 weeks ago Dell escalated my problem and decided since I could show chapter and verse from Microsoft that said SBE had a limitation that I specifically was told was not a limitation by not only Dell sales but tech support, too, that they would send, overnight, regular 'ol 2003.  Overnight came two weeks later with a license but no software, so I have been given an oh so sincere promise that they will really really send it out overnight.  My question is, do I lose all my settings?  Workstation computers, users, software, etc?  I am presuming there is an upgrade path to regular 'ol.  I think I might want to do this, though I have regularly found that this deos not have a parallel experience in workstations.  It has been my experience on desktops when going from XP Home to Pro that many driver settings are lost.  Local sellers never come pre-loaded with Pro for workstations, so I usually pull them out of the box, and install pro (rather than upgrading) because the system has nothing pre-loaded that I want my users to have anyway.  I want them to have a couple of business specific applications and Office, and not Works, and evaluation versions of Quicken, Photoshop, etc.  It has been my experience that occasional users of office type software, when given the choice of Works or Office, will choose each 50% of the time and when you get a document or spreadsheet, half of them are in Works.  Sorry, just venting.  Upgrade versus full install?  Opinions?

Thanks