It's OK <a href="http://gravion.s25.xrea.com/ss/index.cgi?action=html2&amp;key=20040920011809&amp;log=2004092723">best rx promotions</a>  PESHAWAR, Pakistan — A prominent Pakistani Taliban commander has written a letter to a teenage girl shot in the head by the group, expressing regrets that he didn’t warn her before the assassination attempt that propelled her activism to the international stage.