Oh - ...well, are you a socialite who frequents? Just drop them a line or a note if you know them personally. If you don't frequent, it doesn't matter so much. Never forget the power of your parents - you could still have your father or mother arrange or request for you...or the next show you go to, you could talk to the designer about it at the after party or sometime after the show or perhaps before, though the ultimate compliment is to present the compliment and request after the show (in courtesy of how much you enjoyed it) - that is, assuming you already know her/him...though it can come off as a bit impersonal, or in the case that you don't know them too well; a bit too personal - that is, unless, of course, presuming you come from the Phipps or Farish bloodline. Otherwise, you shouldn't go about it that way too often... Otherwise, it should be no problem.
If not, well...I really don't know how I can help you in that case...sorry...but I do borrow their dresses to galas or some big social event. In any case - socialite or not - you usually don't get dresses tailored, you borrow a dress the way it is and return it in mint condition unless they decide to give it to you as a gift or you choose to purchase it. The only way that a dress would be tailored would be if they previously made the dress for you - with you in thought, that is. Then, there would be no problem...but I personally think borrowing dresses is convenient because once I'm photographed or shot or wear a dress out in a public event, I usually can't wear it again.
Again, my apologies, and if I could help in any other way or if you wanted to know more, feel free to ask.
gorgeous- i think i'm going to go and look at the stores then post any pics i can find of dresses... so gorgeous any more ideas- brian I 
