Can't change main domains webpage

[needhelp]

Hello all,
I am very new at this, Ok the problem that i am having is that i setup an domain say www.xyz.com i can go to this address and the page shows up with the default ispconfig one i can't loginto with ftp to change this but if i make a user i can but the web address is www.xyz.com/users/web2_user i would like to just have the main domain. this webserver is only going to be used on a LAN with no outside access to it .
Could some one please point me in the right direction

Thank you very much

[daveb]

In the control panel Under your web select the users and email tab -> then your user -> enable administrator. you can only have one admin per web.