Hi David, I left your thread over on the main forum as is, just changed the title to "submission discussion." Then I made a new thread on this forum for the actual submission and quoted the posts you've already made. It's
right here. Feel free to reply to either (or both!) with further updates; I'll copy-paste whatever's missing from one thread to the other.
Try following the steps listed
here to post pictures. That ought to solve the trouble with your attached files.