Probably not. While some .50's were sent to the Afhgans fighting the Soviets, the Talibunnys weren't a big part of that, nor was OBL. They hung around and picked up the pieces after the Soviets left and the various factions had at each other. Very much like the Bolsheviks or ChiComs under Mao, husband your forces, let somebody else do the real fighting, and then take over from them by taking advantage of their weakened condition.
No kidding, I didn't know that whent on in either case. Were the White Russians anti-Czar?