I know the urge is strong, but I’d suggest just waiting a little while.
Propagation is usually faster than you’d think and I’m not sure you could get MODx working with the temp domain anyway. You probably don’t have access to the real directory that IP points to or the ability to edit .htacces and php.ini there. And, if you could get it working, you’d have to undo everything once the domain name propagates.
i was afraid of that! thanks.
I’f you’re dying to get going, install XAMPP on your local machine and install MODx there.
http://www.apachefriends.org/en/xampp.html
...some hosting companies let you setup various subdomains for a list of predefined domain-names e.g.
yourname.yourhostingcompanyname.com
didn’t know that for the company i’m at until recently, so maybe ask them if they got this feature