Apparently, Tehran's "art exhibition" was quite a success. From the Islamic Republic News Agency:

The International Holocaust Exhibition was held at Tehran Museum of Contemporary Art on Wednesday November 1 and was warmly welcomed by Iranian and foreign artists…. Twelve caricaturists were selected as the best, including five from Iran, one from Morocco, two from Jordan, two from Brazil and one from Syria. Some 480 articles on holocaust were also submitted to the event's secretariat. Out of 1,193 caricatures from 67 countries submitted to the exhibition's secretariat, 250 professional works were selected by the jury and showcased at the event. The three major questions raised by the event include, Why is the philosophy of freedom forgotten when Holocaust is criticized?',Why should Islam countries and Palestine have to pay the price for the Holocaust?' and `What about the actual holocausts taking place in Abu Ghraib and Guantanamo prisons?'.