I have no suggestions for reclaiming the domain (it sounds like you might need someone with root access to fix it... I'd suggest putting in a helpdesk ticket)
However, I did want to suggest a way that you can do an "out of site" redirect (and be able to modify it after the fact).
Set up your friends domain under the WHM (just like you were making a new account) but instead of putting any information in the account just add the following script to your .htaccess:
Mod Rewrite is a very powerful tool for handling redirects and lets you do many neat tricks (redirecting to subdirectories, filtering redirects based on IP...etc).
I'm assuming it's an installed module on all the servers, it's certainly on mine.
Caution Treat Mod Rewrite with respect: as it controlls site access you can inadvertently lock yourself out of your own website if you're not carefull.
I don't claim to be a master, but there's lots of good articles on google for the interested.
For those of you who have been reading the forums this week, I promise to try and cut back on my evangilizing of ".htaccess"... for at least a couple of days. Promise.
