Disk quota problems w/ user folders (home folders) / owned by Admi

Users folders (home folders) are owned by Administrator account, this is
throwing off disk quota. This is because all the user folders where created
by the Administrator account, & new users will get created by the
Administrator account. There is a manual process, by using a Win2k3 server;
to give ownership to the users folders, but we have way too many users to do
this manually. What can I do to automate this? So that current user folders &
new user folders that get created are owned by the right user, not the
Administrator account. Any suggestion is much appreciated. Whether it be a
script or something in AD. Thanks.
Jason