Paul,
I am presuming that it is only your web site access that is causing you problems - and that what you want is any reference to
www.xyz.org to bring up your remote web page. (If you want all of the other hostmames (e.g., mail, ftp) to be pointed to the remote site as well, then your local domain should probably be something else.)
To accomplish this, here is what I have done. (I think this is what f21970 was suggesting.)
In the Domains menu item ensure that 'Resolve Locally' is selected.
Then in the 'Hostnames and addresses' section, click 'Modify' for '
www.xyz.org' entry and select 'remote' and then enter the ip address of your remote hosting site and save the result.
HOWEVER, I have noticed in the past that this can take *several hours* before this adjusted dns entry becomes effective for the browsers on your LAN. If you try immediately after making the change it appears not to work and you get very frustrated.
Hope this helps.
John