Above all, the most important thing you can do, as you make repairs ... right now ... is to NOT loose your head. A quick (panicked) fix may by no means be the right fix.
For example, you may now be cleaning up mold, but remember - the best way to clean up mold is to prevent it from the beginning ... to build (or re-build) for it.
And that's it.
Maybe you'll find other helpful tips here (idk):
* Working with an HVAC Contractor in an Emergency Situation: http://www.buildingmoxie.com/2008/12/working...