Accounts

I am an end user of cpanel4 and I want to create and manage accounts, to only allow access to certain parts of the public_html, and so far I am unable to do this. Neither me nor the admin know how go about adding accounts. I have read all the topics here about adding accounts but they do not help I simply don't know how to do it, I'm not having a problem of the same nature and those threads. I really need to figure this out....if someone here could help me I would greatly appreciate it.