Marooned Taliban Count Out Grim Hours in an Afghan Jail
About 3,000 Taliban prisoners, captured in Kunduz, have been living in miserable conditions in Afghan jail for last four months; Americans interviewed them and took worst of lot to Gunatanamo naval base in Cuba; Uzbek government took about 10 of its citizens; warden freed about 250, most of them either very old or very sick, before recent Muslim holiday; remaining prisoners, all of them Afghan or Pakistani, appear to be largely forgotten; 800 Pakistanis face especially uncertain future; 3,000 men are living in 40 cells in prison, in Shibarghan, Afghanistan, designed to hold about 800; there is little food and hardly any medical aid or medicine; exactly how many prisoners have died remains mystery; photo (M)