You can download it from here: http://partitionlogic.org.uk/download/index.php
A change log can be found here: http://partitionlogic.org.uk/download/changelog.php#0.7
Here's an excerpt:
Overview: More than four years in the making, this is a major new release offering an updated look and a number of new features, including 64-bit disk support, UDF (DVD) filesystem support, and GPT partition table support, as well as file browsing functionality. New administrative applications and functionality have been added, and the ATA/IDE driver has been enhanced, including the ability to better support backwards-compatible SATA controllers, and a number of tweaks and bug fixes are also included.