Sorry for the late reply; I'll answer for anyone else wondering.
- There are still issues with loading images in paint and setup; but this will not prevent you from running the script, and it is still fully functional. The image loading thing is being worked on tho.
- The questions relating to prayer flicking are worries about their relation to the "ban rate", which has been pretty much confirmed. Enabling prayer flicking will increase the risk of getting banned, and as such should not be used for farming many capes. One should be fine, though.
- Yes, the script completes all the 63 waves and jad.
- No, at this time the script only supports using one weapon