I'd write a little .NET exe that has all sql database updates within it. Have a field in a table that keeps track of the database version number. In your little DBUpdate.exe, first thing you do is check the version of their database (If the table or field you keep the version number in isn't there, then you know to start at the beginning...and create the table or field). Then, just run through the updates that are less than their database version number, and update their database version number as you go.
--EricDV Sig--------- Some problems are so complex that you have to be highly intelligent and well informed just to be undecided about them. - Laurence J. Peters