Keep in mind that this kind of news (such that government aided IS) are produced/propagated by a group in Turkey who's sole aim is to overthrow the current government because of an evident power struggle. Just take it with a large grain of salt.
Good analysis: http://www.washingtonsblog.com/2015/05/newly-declassified-u-...
Confirmation by the former DIA director: http://levantreport.com/2015/08/06/former-dia-chief-michael-...
From what I see, there may have been a help to Syrian rebels, nobody denies that anyway. But claiming it was "IS" and help was sent to them deliberately is just wrong.
The fact that these are reported by an organization which is anti-government does not make it false.
I agree that we should take any news with a large grain of salt.
http://europe.newsweek.com/isis-and-turkey-cooperate-destroy...
Do you also think it's fabricated?