I booked two rooms at CSR (first time trying this resort) on April 26th for Nov. 5 - 10. At this point I have not received a paper confirmation, however, I did receive a small packet which contained a "welcome to CSR " type pamphlet.
Within a month I plan to call and pay in full over the phone, I may ask about the confirmation during that call. In the meantime I have made a copy of my credit card statement showing the payment to WDW Central Reservation which I'll stick in my travel folder just in case there is a glitch of some kind.