There isn't any way for you to confirm once the travel plan number was modified by the wait list coming through, there is a problem with Disney's system. You either trust the owner or you don't. Maybe the money that you saved renting isn't worth your concern and anxiety, renting isn't for everybody.
Bill.
I do trust the owner...I was more concerned that somehow DVC or WDW cancelled our reservation! She called MS just to check and they said everything was fine. She also said that the reservation now shows up on her member page as one instead of 2 separate reservations, so I am guessing that when it was combined, that is where the glitch is in the system.