When happy with your site push the Upload Website tab.
You'll need a website host although you often get this free with your broadband supplier.
Purchase some website hosting here or buy the 'with hosting' version of this software and we will send you the codes you require.
Enter your ftp pass codes then press Connect followed by Auto FTP Synch, for your site to go live.
Or download Filezilla client which is an excellent free FTP program.