You can download the latest version of J-Blowfish using the following links.  The installer includes support for Clarion 5.5, 6.x, and 7.2, for both ABC and Legacy.

J-Blowfish 1.18 – 23 July 2010 – 0.3 MB
J-Blowfish 1.10 Demo EXE – 23 Apr 2007 – 0.7 MB