I saw your help and the previous answer. Combined with the following answer, I didn't understand whether you want to pay taxes on courseware, handouts, MP3 or anything else, and neither did the following answer.

If you want a tax courseware, I'll send you a part first. If you think it's what you need, take it as the answer, and I'll send you the rest. If it's not what you need, you can just ignore my reply.