Complex sentence: The date of this release has changed three times, first was going to be in september of 2007, then it changed to May 12, and now it was changed to august of 2008.
Split into simpler sentences: The date of this release has changed three times. First it was going to be released in September of 2007, it was then delayed to May 12, and now it looks to be released sometime in August of 2008.