But, the money from Pakistan came from a little more official agency other than the private citizen.
Significantly, Sheikh is also the man who, on the instructions of General Mahmoud Ahmed, the then head of Pakistan's Inter-Services Intelligence (ISI), wired $100,000 before the 9/11 attacks to Mohammed Atta, the lead hijacker. It is extraordinary that neither Ahmed nor Sheikh have been charged and brought to trial on this count.
Michael Meacher: The Pakistan connection | World news | The Guardian
More than a month after the money transfer was discovered, the head of ISI, General Mahmud Ahmed resigned from his position. It was reported that the Federal Bureau of Investigation (FBI) was investigating the possibility that Gen. Ahmed ordered Saeed Sheikh to send the $100,000 to Atta 
The Wall Street Journal was one of the only Western news organizations to follow up on the story, citing the Times of India: "US authorities sought General Mahmud Ahmed's removal after confirming the fact that $100,000 was wired to WTC hijacker Mohamed Atta from Pakistan by Ahmad Umar Sheikh at the instance of General Mahmud."
Ahmed Omar Saeed Sheikh - Wikipedia, the free encyclopedia
We play lose with terms like connections and help, but of our problems, the Taliban were and are the least of them.