Yes, yes, yes, yes and yes.
Brock Publications used to handle Cubic and Swan information. I maintain a Yahoo Group (cubigastrogroup) which has a lot of info including the contact details of the new firm which is publishing hard copies of the documentation. I never did get a yeah or nay from the copyright owners regarding the group's Files area hosting electronic copies of the manuals...so we don't have a lot in that regard. Yet.
The service manual for the Astro D is about an inch thick and copying it is going to take some work. Join the group, send an e-mail to the new firm (whose contact details can be found in an early thread) and if they won't help out I'll look into duplicating the stuff for you.
As far as parts or troubleshooting goes: What do you need? Stated another way, what's your rig not doing right?
"Everyone wants to be an AM Gangsta until it's time to start doing AM Gangsta shit."