Well Vashista on dna forums linked me with the website for the pakistani samples, it gives the location and coordinates, he said that that coordinates of the pathan samples link them to the Kurram valley http://www.cephb.fr/en/hgdp/table.php

^ but one problem here is that 90% of kurram valley is (turi) tribes, who are actually some times considered a non pashtun tribe and are more related to the hindko population in the north west pakistani region. So I am actually not 100% sure if they collected the samples from this tribe or some one else, pashtuns are so many different tribes and results are probably to vary probably in each different tribe