Pee-wee's Big Adventure

I saw Pee-Wee's Big Adventure is released on DVD on November 4. But this has not been here in '06? Why would they re-release? In addition, it says on Amazon that the film is heavily modified, apparently on the two DVD versions. What has been cut, and why? Finally, the reductions will ruin the flow of the movie?

That's all I could find on the subject ...

http://www.imdb.com/title/tt0089791/boar ...