thank for your advice, actually, i'm just doing the same thing as you say.now i am making a two-handed preparion. i've been studying some cs courses include 'C++' in a local college. meanwhile i've participated a TOEFL training in the new oriental school of guangzhou during the weekend. i have already known the basic operation of windows due to my several years working experince with computers. can you tell me where your trainning school will be and when it will be availabe to your students? i will appreciate your further advice.