By ZARAR KHAN Friday, October 28, 2005 Posted at 6:29 AM EDT Associated Press Muzaffarabad, Pakistan — The United Nations warned on Friday that it will run out of money and be forced to ground helicopters delivering desperately needed relief supplies to quake-hit northern Pakistan unless donors come through with the hundreds of millions of dollars needed to see 2.3 million hungry people through the winter. Jan Vandemoortele, UN humanitarian co-ordinator in Pakistan, also urged archrivals India and Pakistan to open the disputed Kashmir border, saying this would help the relief effort -- if not solve logistical challenges posed by...