SZARP is hosted at SourceForge. There are few options available:
There is APT repository with SZARP packages available for Debian current stable and unstable distributions. "Unstable" version is updated more frequently. Add following repository to your sources.list file:
deb http://www.szarp.org/debian unstable main non-free
or, for stable version:
deb http://www.szarp.org/debian stable main non-free
(Currently stable still points to lenny version, if you use squeeze, change release name to sqezze.)
Then use apt-get update and apt-cache search szarp to list available packages.
APT repository key can be imported using following command:
wget -O - http://szarp.org/debian/key.asc | apt-key add -
Entry for APT repository for Ubuntu 10.04 Lucid Lynx packages is:
deb http://www.szarp.org/debian lucid main non-free
Older version for Ubuntu 9.10 Karmic Koala is available with:
deb http://www.szarp.org/debian karmic main
You can download latest Windows binary from SourceForge: http://sourceforge.net/projects/szarp/files/
You can download current SZARP source and compile it yourself. Source is available at Git repository, use something like:
git clone git://szarp.git.sourceforge.net/gitroot/szarp/szarp