I think you are asking how to make a subdomain - like:
teens.mysite.com
vs.
www.mysite.com
If that is what you are asking - ask your host to set up a subdomain - they will usually set up a seperate folder for you - just instead of the folder saying:
mysite.com
it will say:
teens.mysite.com
If you are asking how to make a webpage linked - then you have problems - as you did it ok with your topbucks link
(Even though you do it differently)