SQL Database Backend for Accounting Software

Rick Sharp asks: "At my firm we use a pretty good mix of Linux, BSD and Novell solutions for our networking needs. We don't have any NT servers, and don't intend to start either. However, I was told today by the vendor of our accounting software package (Harper and Schuman) that our program would require MS-SQL 7.0 after the next upgrade cycle, which is only a few months off. Does anyone know if it is possible to use this package with a Linux SQL database. We currently are using PostgreSQL on Linux for some other projects, and I would not like to get sucked into an MS-SQL only solution."