Newbie needs help with live remote broadcast

Hello everyone. Hoping someone can help me out with a few questions I have.

I am creating an internet radio station. I will be setting up airtime directly on our severs. I have run through the demo a few times and gone through the manual but im still a bit confused about how to setup a live broadcast from a remote site using an internet connection. Here is what i would like to do:

a) Setup the Calender within airtime to switch from pre-progrmmed shows to a live broadcast from a remote location then have airtime go back into the pr-progrmmed show at a specific time. How would I set this up? Is this possible?
(example) 10:00am to 11:00am Pre-programed show
11:00am-12:00pm switch to live broadcast from remote location
12:00pm switch back to pre-programed

Can this be completely automated?

b). How do I setup live remote broadcast in Airtime?

c). I love the fact that Airtime has the record to soundcloud function, however can this function be used to record to a different site with the same functions?

I hope someone can help me out with this. Looking forward to your responses.