Translation of chaquetón

I will usually use the most usual sense of the term, and not the more sophisticated ones and I think you will understand what I wanted to say. In any case we should review all words every two days or so.
Please explain me the exact differences between British and American .... This year I'm trying to make the TOEFL. We can then discuss how we can prepare for this exam. I failed the first time.
I see that you want to improve your English. If you understand Spanish, we could talk on ICQ. If you're online, we can chat there. Can you please give me your email and other contact details.