upload two websites

I have a web site (www.jazzclub90.co.uk) which I upload via the latest WinSCP...can I, and how do I, upload another site with WinSCP.
I am using Windows 7 and Serif Web Plus X for the site builder, and 1and1 web hosting.
Please make allowances for the fact I am 81 years old!!!....but still in charge of my faculties!
Many thanks
John Howell
email: jazzclub90@live.co.uk
Tel: 07903 285361

What is different about the other site? Do you use the same hosting (1&1), just for another domain?