Complex sentence: The album is available online on iTunes, Amazon and other digital retailers, but the physical album is available exclusively at Hot Topic stores in the US Special Edition of the album including a new HIM shirt featuring the new album cover was available for pre-order.
Split into simpler sentences: The album is available online on iTunes, Amazon and other digital retailers, but the physical album is available exclusively at Hot Topic stores in the US. A special edition of the album including a new HIM shirt featuring the new album cover was available for pre-order.