JSesh is used and supported by the IFAO .
JSesh is featured on sun's swing sightings previews 23!
JSesh 6.3.1 and earlier have (sometimes ?) problems installing on 64 bytes Window systems. Normally, JSesh 6.3.2 should solve the issue, but meanwhile, this video shows a system which should work.
To summarize, create a shortcut to JSeshAppli.jar, and edit it.
The line is java -Xmx512m -jar "C:.... (where JSeshAppli.jar is)"