Just a comment on the whole photo/signed by someone who's known you issue...
We sent in my husband's application, passport, check, photo signed by someone, etc. Had it returned in the mail saying "you must appear in person at the DVLA to have your photo signed by an official" Reason? Because we had not been in the UK for two years yet. NOWHERE does it say that on the form or instructions, mind you! I did, after an exhaustive search of the DVLA site, find the following in a PDF leaflet:
"If you have been in this country for less than two years you should take your application and identity documents to the nearest DVLA local office. Staff there are able to certify photographs in these circumstances."
Fine. So we go to the DVLA (had to go on a day I had off as there's no central London location where you can have this done). I figure I might as well have them sign my photo so I won't have to come again later (couldn't send mine in earlier as my passport needed to be renewed).
DH goes up and gets his done, no problem. Since he had sent his passport in earlier, it was marked on the form that DVLA had reviewed it so no need to send it again. Thus form and payment is taken and they say he'll get the provisional license in a few weeks.
I go up to the counter and ask them to verify my photo. But oh no. They will not sign it and give it and the form back to you - you have to have it signed and just give it to them to send off along with your identity documents (my passport naturally). Why they couldn't verify my photo and let me have the form back to send in later, I do not know. Just the rules I guess. And of course, what this means is that I have to go BACK to Wimbledon and have them sign my photo after my passport comes back from the US Embassy.
Anyway just a word of warning in case anyone who's been here less than two years, don't know if it's happened to anyone else or if this is a new requirement.