for Thunderbird 2.0.x / SeaMonkey 1.1.x on Windows (32-bit)
enigmail-trunk-moz-win32-gecko18.xpi (build date: 2008-08-27, version: 0.96a.0+)

for Thunderbird Trunk / Seamonkey Trunk (Gecko 1.9) on Windows (32-bit)
enigmail-trunk-tb-win32-trunk.xpi (build date: 2008-08-27, version: 0.96a.0+)

for Thunderbird 2.0.x / SeaMonkey 1.1.x on Linux (x86, 32-bit)
enigmail-trunk-moz-linux-gecko18.xpi (build date: 2008-08-27, version: 0.96a.0+)

for Thunderbird Trunk / Seamonkey Trunk (Gecko 1.9) on Linux (x86, 32-bit)
enigmail-trunk-tb-linux-trunk.xpi (build date: 2008-08-27, version: 0.96a.0+)