GpsarPro downloads :
Manuals, in PDF format (right-click and "save as") :
Gpsar "classic" download :
Besides GpsarPro (since september 2007), Gpsar "classic" version still exists.
This version is no longer supported, GpsarPro development taking all my time, and won't improve anymore (latest is from April 2007). The use of this software is free, even after one month.