We have an online documentation now :
http://www.asf-service.com/doc/doceasytrade(en).htm
which explains the "click again" feature
about the price, you have two options :
30?/month
or 300? one time, but only one month live support (then it s via forum only) and no update (except security updates)
30?/month is absolutely nothing compared to your pontential earnings with the script.
and by the way, next licences aret at 20?/month.
Have a good day ;)