As mentioned above, sufism is highly popular in the Afpak region, so this isn't really an ATL.
If you want to prevent the rise of Taliban-style fundamentalist Islam, you need two POD's:
1) Eliminate the 1973 overthrow of King Zahir Shah of Afghanistan by his cousin Daoud Khan. Zahir Shah was a rather progressive ruler, who allowed meaningful elections and throughout the 1960's tried to set the country on a path toward democracy. This was stopped by Daoud, who, although he declared a republic and called himself president, ruled like a monarch and was much less progressive than Zahir Shah was, inspiring a leftist backlash that led to his overthrow by the Communist party in 1978, and subsequently the Soviet intervention.
2) Eliminate Zia ul-Haq, military ruler of Pakistan from 1977 to 1988. Unlike previous Pakistani rulers, ul-Haq was an Islamist and made Pakistan's government, and especially its education system, much more religiously oriented. The current Islamist wave in Pakistan is partially the result of the people who passed through ul-Haq's education system in the 1980's reaching adulthood.
Thus, Afghanistan will develop like a normal country instead of following the Congo model, and Pakistan will continue to be under non-Islamist rule. Bin Laden will just be another rich Saudi, and Mullah Omar will be standing on a streetcorner in Khandahar.