Question   With the system I purchased can I have unlimited replicated URL's for each of my Members, or am I restricted to just (1) replicated URL per Member?

Answer    You have one "friendly" url per a domain:
yourdomain.com/USERNAME

With that url, it has the username at the end and nothing else (easier to use).
Also, each page in it's software has it's own url that your Members can use directly:
yourdomain.com/splash1.php?user=USERNAME

This url is a bit more complex, but can be used.
Also, you can add additional domains so Members have a 2nd "friendly" url on a different domain.