First...contratulations! They says that a LOT at orientation, so I'm sorry you missed that part.
Ok, I can only speak of the Anderson Campus....but, it sounds pretty similar on your tests. For us...the background/drug test is due by August 5th. Most of the Medical stuff is due by September 15th...except the 3rd Hep. shot which is 6-months after the first one. They also made it VERY clear that school had to be paid by August 15th.
On the drug test. Go back to your account with the CP. At the very bottom there will be several boxes. One is background, one is drug, and several others. Click the "+" sign next to drug...and that opens a window. I believe it says you can print the paper you need for the test. That's where I found mine.
On the vaccinations. I have been scanning them into CP as I go. Made a mistake or two...and it was rejected. So, I corrected it...and scanned them in again. My two mistakes: I didn't have the front AND back of my CPR card on the same page...and you can only scan one page. The other mistake was the TB. They want it when BOTH tests are complete, not in progress.
Talk to the folks who are collecting the information at the school...they can help. It will be ok. I'm scared too, that after all this work that I'll drop something. Remember, though, God put us on this journey and isn't going to abandon us now!