Here are the download links for PBA 2K13.
V1.0 - V1.4
V1.5 Part 2 Main Folder Files
V1.5 Part 2 Appdata Files
V1.5 Part 1
(Decryption key: GuOj3yMHvtox0ibyVC4S0TVQolFn3FFuQZqXpDdnp34)
V1.2 & Below
(Be sure that you are registered in the forums to be able to see the Download Links)