Wow! Don't apologize for English that's better then most peoples who claim to speak English. For instance peoples is terrible English.
Anyway, I don't have a great answer but if you have not found any help yet let me know. I think the best way to learn CVI is to just dive in a when you get stuck phone a lifeline. In other words try and get a network going with other CVI users. Email me with some basic CVI questions and I might be able to help.
Grant
Grant M. Johnson
Project Engineer
LECO Corporation