With my current host, you can just make a folder in your mainwebsite_html folder

something like subdomain.mydomain.com and it will create the subdomain...

they told me they borrowed this script... that it was written in python, and I could find it on the RackShack boards... i've had no luck, and I was curious if anyone here could point me in the right direction

Ensim is written in python.
subdomain.mydomain.com and it will create the subdomain....... yes this is what called sub domain.
I don't think site owner has facility to create sub domains like in Cpanel.
Go to ensim forums for help...

http://forums.rackshack.net/showthread.php?threadid=2405&highlight=apache.py

Thank ya much