My current site "th-ro.in" is setup to point to my home computer.  I'd like a subdomain, "smi.th-ro.in" to be hosted here.  How can I do this?   I currently have an account on heliohost set to th-ro.in.  I have an A record pointing to the IP of heliohost from where my DNS records are managed for smi.th-ro.in.  Do I need to configure the subdomain to use Heliohosts name servers?   
I am under the impression that if I could somehow change my accounts main domain from "th-ro.in" to "smi.th-ro.in" this would work....I got it working yesterday, but now it says it's queued.  I don't really understand what's going on.  Thanks!