The last version of the manual (1.0.8) is not translated to English. For now, there are only the Portuguese and Esperanto versions.
If you want to help this project on translating its documentation to English, see this source file, it uses LaTeX: klavaro-dok-1.0.8.tar.gz (183 kB). Then, you are supposed to translate from Portuguese or Esperanto, of course.
May be very useful an article about Klavaro, in the site Penguin Sightings. It's nicely written, the description is very clear.
If you want to give us some feedback, sugestion, ask for help, support or any thing else, please visit the forums at SourceForge. There you will find rooms for English, Esperanto, Hungarian and Portuguese.
Be aware that in order to post there, you must have an account at SourceForge. That's to avoid spamming from anonymous people. If you still aren't registered, spend some minutes first to do it: create an account at SourceForge.
All right, go to: Klavaro - Forums