Need java job done today

We need a java job done today. The program was written already but there seems to be a bug in it and we need it fixed. The program was working fine but the connection string for the SQL Server database was hardcoded so we asked another programmer to create a [login to view URL] file so we could change the database if we wished. He has done it and it looks ok but it's not working. Another thing we want to do is add a couple of directories to the config file so that they are not hardcoded in the code either. It should only take a couple of hours work to sort it out, there will be someone here to guide you through it.