just to set things straight in my mind :-
User = consumer ( person who payes to have the website hosted )
Client = reseller ( person who buys bulk web space to resell under their own name to their users )
Admin = User with admin rights ?
Sorry , i know these look like stupid questions but ispconfig is not as logically set out as ispconfig 2 in this area
Might i suggest taking half an hour to write a quick how to set up 2 web sites from a clean install including setting up webspace , ftp and emails for a domain .
I'm sure the time you waste answering these basic questions is greater than the half hour you would invest to do the above