From the BBC...

http://www.bbc.co.uk/news/world-asia-16821218

Pakistan helping Afghan Taliban - Nato

The Taliban in Afghanistan are being directly assisted by Pakistani security services, according to a secret Nato report seen by the BBC.

The leaked report, derived from thousands of interrogations, claims the Taliban remain defiant and have wide support among the Afghan people....

...The BBC's Quentin Sommerville in Kabul says the report - on the state of the Taliban - fully exposes for the first time the relationship between the ISI and the Taliban.

The report is based on material from 27,000 interrogations with more than 4,000 captured Taliban, al-Qaeda and other foreign fighters and civilians.

It notes: "Pakistan's manipulation of the Taliban senior leadership continues unabatedly"....

...It quotes a senior al-Qaeda detainee as saying: "Pakistan knows everything. They control everything. I can't [expletive] on a tree in Kunar without them watching."

"The Taliban are not Islam. The Taliban are Islamabad."...

...Despite Nato's strategy to secure the country with Afghan forces, the secret document details widespread collaboration between the insurgents and Afghan police and military...
It goes on a bit. The report is of course open to all manner of interpretation and challenge. Doesn't sound a terribly optimistic read by any account.