The Release Candidate version 2.2 is available to download from:
http://www.aperitto.com/media/downloads/ppcic_2.2rc.exe

Discussion thread:
Forum post

Changelog (from 2.1 version)

* Vista Compatible.
* More advanced builder options for the windows setup wizard.
* Splash Screen for your installations.
* About Button with custom message.
* Beveled Label like InstallShield.
* Bugs within the the advanced builder options and relative paths fixed.
* Multi tabbed user interface. No more floating windows taking all the workspace.
* Registry Section Editor now can import registry entries from .reg and .rgu files.
* Updated User Interface of CAB Creator Module.
* Updated look and feel of Project Manager.
* Bug fixes.

Regards,
Nick Protopapas