Zoran Radosavljevic has written three books in English language. To order your copies and see the books, kindly visit bookvedica site, here
So far, Zoran Radosavljevic is teaching fully in SIVA Russia, and there is no comprehensive course in English language. Very soon, you will have seminars and webinars in English available through bookvedica sight, here
If the time allows in future, I can quickly transform one-year curriculum in English Language. It will be the most comprehensive and best beginner course on Vedanga Jyotish as studied from old tradition, in English language. Depending on the feedback, I will arrange the course. It is advisable to read my books first to get an idea what level of Vedanga jyotish we teach.