Setting up WordPress in a subdomain after successfully installing WordPress Multisite for the parent

Hi there,

I've come a long way since last Friday when I joined WPMU DEV as a newbie ...

I have successfully installed WordPress Multisite for my primary domain causeinternational.com but don't know how to get WordPress up and running for subdomain australia.causeinternational.com.

I've looked through the WPMU DEV manuals, etc., but I just can't see how to get australia.causeinternational.com linked into my WordPress setup which is working wonderfully for causeinternational.com.

Maybe I need to read "WordPress Multisite for Dummies" ...

Thanks ... Michael