The shop I have ordered my dress from (and paid a 50% deposit to) has gone into adminsitration! I am assured that the designer has agreed with the shop/administrators to fulfill all existing orders ... so fingers crossed that there will be no problems ... but I'm kicking myself for having paid by cheque and not credit card, just in case!
So - a warning! In this econonomic climate, I'd suggest paying all major deposits for wedding things (venues, dresses, caterers etc) by credit card! I will be from now on!