Where Have You Been Hiding, Jonathan Cheban? Sometimes you have to make an effort to reinstate communications with (or in our case, about) old friends who you haven't spoken to in a while. We used to write regularly about the travails of Jonathan Cheban : party boy flack, designer , and former Access Hollywood correspondent and Lizzie Grubman partner . But we've said barely a word about him since February, when he supposedly registered at Barney's for his own birthday party . Jonathan is simply too crucial a character in the celebutard publicity machine to go unnoticed. We hear he still leads a very eclectic social life. What do you hear? Anyone with important Cheban information, please email us .