The Heretical Anatomy cassette is now available from Anthems of The Undesirable in VA. He should have copies within the week. Also available through Anthems: The Reins of Horror cassette, and the very last copies of the Accursed Followers demo.
To be clear, we (ABYSS) no longer have any copies of the HA tape or the AF tape.
Edit: Heretical Anatomy tape is also available at: Analog Worship: ANALOG WORSHIP