I thought I was real clever.
I noticed that the URL for the down arrow on back issue ordering had the format:http://jima.imana.org/editor/moveIssue/532?d=d&newPos=2
I copied that URL to a text editor.
So I hovered over the arrow above the position to which I wanted to move it to get the position that I wanted to get a new NewPos number.
I then edited the URL in the text editor, copied the URL into my browser, and, voila, the issue would jump multiple places to the location I wanted.
The only problem was when my list of issues exceeded 1 page.
I discovered there's no way using the arrows to move a back issue from the first page to the next page.
I'm in this position because I have nearly 100 back issues to upload, while we are publishing current issues.
Then I did the unfortunate mistake of clicking the "Restore Default" order, which apparently is publication date.
I said, well, I can simply change the publication dates on the issues, but the earliest possible date in the "Issue Data" screen is January 1, 1999.
I'm just entering fake dates now to put the issues in order. Any other suggestions?