No. Look on this Group, in the last 2 days Tod has posted the link so you can (or the housemaster can at your GF address) register your TM30 online. TM6 is nothing other than your entry and exit information.
Get to London about 8:30 or you'll have so many in front of you. Gate opens at 08:45am, go down the stairs and take a ticket from the machine and turn right, take a seat. Thais will turn left. Counters open at 9am. After documents are handed over they will give you a raffle ticket. Go back the next day at 11am and get your visa.
My wife and I went, first done in Udon and we had to have a neighbor sign to say she knew me. Then it was passport translated, Thai marriage cert, her blue ID and house book. After we had moved the local Amphur just issued a new set with the new address no paperwork required. I have also heard different offices have different requirements. A few years back it could not be done until after 3pm when they changed the software over but I hear that's changed now.