Job, there is no ODBC to a Sage hsted environment. You can transfer a complete database and overwrite what is in the hosted environment via a remote desktop. In our environment we allow limited remote ODBC type connections (through VI), but recomment alternative methods for larger data files (transfer and then VI, web services, etc.).
Attached is a document we did when MAS 90 Online became ""generally available."" Page 5 gives a good summary of the differences between our service and Sage's.
Since this was originally developed I know Sage has added SPS and some selected ""Endorsed Products' to the hosting environment. Also sunsequent to the original writing Sage changed the price sheet, so some of the graphs may not be 100% accurate and subscription pricing is also available.