I will admit that my searches in this area have been somewhat cursory, but is there a resource (something like YUTorah.org) for anglophone shiurim on safrut? Most of the shiurim I've found are in Yiddish, which I do not understand.
I saw this course from Web Yeshiva, a while ago. It is in English, and it does seem thorough enough for a beginner. It describes what you will learn as well as what materials you need.