Change in Java Code

I am working with OPEN BRAVO POS as an solution for end users. I like the functions but need a little modification outside of the administrator interface. The interface already allows use of merchant gateway IE Authorize.NET. I need to change the URL for the gateway settings in a JAR file somewhere and then re-compile it. Summary I have this working with local machines on a local network, and database pointing to "machine 1". I have sucessfully installed #2 on another PC. and it seems to communicate. What i need working 1. Be able to Host the database file on a FTP Server (ex: www:my [login to view URL]) 2. Run from Android Operating System [login to view URL] Printers that are IP Based. This should only take a little time, seeing that it has been done by other users. Willing to do a Flat Rate of $100