Ronit Zilkha, Cherie's designer of choice, sees her business go bust

By Martin Hickman, Consumer Affairs CorrespondentPublished: 15 September 2007Ronit Zilkha counted Cherie Blair, Cate Blanchett and Julia Roberts among her clients and her boutiques graced some of London's smartest postcodes. But the business that appeared to be booming yesterday fell off the catwalk.Her chain was placed in the hands of the administrators as debts ran into millions of pounds. Ms