In the Tutorials section there is a tutorial on "Web Live". This is a method of calling web pages on a server (ASP, PHP doesn;t matter) - and the web page does all the database access - the user applpication doesn't need to lknow what type of database is being used in the background.

Also in the tutorials section is a tutorial on Web Services -this works in Kylix as well as delphi and therefore could access a mySQL database on a linux server as well.