Multi Site on GoDaddy VPS

Just installed WordPress Multi-User on wp.aiowebservices.com using the sub-domain mode. I do not have the ability to forward wildcard sub-domains, so I setup a CNAME record testaroo.wp.aiowebservices.com that points to “@” (wp.aiowebservices.com) .

I created the testaroo site in the WordPress administration, but all that happens is the domain ends up at my default under construction fail-safe page (see for yourself). I can’t figure it out and have tried several different methods. I also installed the WordPress MU Domain Mapping plug-in, which has not helped either (unless I have configured it wrong).

I am using the GoDaddy Simple Control Panel and am usually pretty good at fixing DNS issues. I cannot edit the actual Apache vhost file since those get wiped out by the control panel every reset.

Any help would be appreciated. Thanks in advance!