Dark Ender are you sure the DVD's don't have 2 sets of subs? One for the edited for TV croud and a second for the truely uncut subs. This has been done on many uncut DVD's including Yuyu Hakisho for example.

The fact you said that the subs are very close if not identical to the dub is a big hint that those likely are not the real uncut subs considering Naruto didn't say "Believe it" in the orignal and rather stated "becaise thats my way of the Ninja" atleast from what I recall.