>Got a VFP app that I'd like to take to a SQL backend, but it won't connect. Says everything is fine, but when I try to do anything on the connection it gives me an error that basically says 'Not connected'
>
>Research on that error generally comes back to 'port issue' so, what port does VFP default to use and is it possible to change it?

You may need to run the SQL Browser service on the same machine that's hosting SQL Server. Otherwise remote computers may not be able to find the correct host\instance.