Complex sentence: The album is a collection of cover songs, sold only during Chris Carrabba's solo acoustic tour during fall 2007, and also in a limited release through the band's website in September of that same year.
Split into simpler sentences: The album is a collection of cover songs, sold only during Chris Carrabba's solo acoustic tour during fall 2007. It was also available as a limited release through the band's website in September of that same year.