Complex sentence: Amphibious Assault's second album has been completed and was originally scheduled for a June, and then August, 2005 release but has been delayed, largely due to Bowman's school schedule.
Split into simpler sentences: Amphibious Assault's second album was completed and originally scheduled for a June, and later, an August, 2005 release. The release was postponed, both times, largely due to Bowman's school schedule.