Afghanistan: Taliban Seem to Have Less Funds and Supplies This Year, But the Problem Does Not Appear to be that Acute, February 17, 1999 [open pdf - 679KB]
"Suffering under sanctions imposed in response to nuclear weapons testing in May 1998, Pakistan has reduced aid to the Taliban, although sources indicate Pakistan 'continued to write a check worth a million or so dollars every couple of months.' This decrease in support is not a political move by Pakistan, but appears to be a purely budgetary decision. Unlike certain other documents on Pakistan aid to the Taliban, this cable reports that there is little evidence of direct military aid from Pakistan to the Taliban, as Pakistan only admits to sending flour and fuel."
National Security Archive: http://www.gwu.edu/~nsarchiv/NSAEBB/NSAEBB227/index.htm