Hi Ron,
Many thanks for your reply.
I think I follow - and it's a yes?
As my default WP is accessed via the following example URL;
http://www.mywebsites.co.uk/WordpressSites/
with additional sites;
http://www.mywebsites.co.uk/WordpressSites/Site1/
http://www.mywebsites.co.uk/WordpressSites/Site2/
http://www.mywebsites.co.uk/WordpressSites/Site3/
etc etc
Regards
JimJamUK