Picked this little trick up while looking to redirect some domains. You could do this in the htaccess file but if like me that doesn't work <long story> you might need this because CWP does not currently do parked domains.
For a site that has changed it's domain or has multi domains pointed to it.Lets say your main domain is MYDOMAIN.COM but you used to use one called MYOLDDOMAIN.COM. You don't want to loose the visitors who still go to the old domain name and you still own it or the domain is just another version eg. mydomain.com, mydomain.co.uk, mydomain.eu etc etc
Edit the vhosts file found under Apache Settings. Look for the Host section of MYOLDDOMAIN.COM and add in the line RedirectPermanent /
http://newdomain.com/EXAMPLE
# vhost_start olddomain.com
<VirtualHost ***.***.89.41:80>
ServerName olddomain.com
ServerAlias
www.olddomain.comRedirectPermanent / http://newdomain.com/