I upgraded to pro pack for the bulk upload feature, and used it successfully this morning. Also in the last week v3.8.14 came out, and I installed it.
Now I notice that the styling for the results table has radically changed. Each store's data is now in a large green square box, rather than in a fairly narrow row, which is much easier to scroll and looks much better without CSS.
Also, in Safari 6.0.2, the boxes are not 3 per row (as they are in Firefox 18.0.1) but 1 per row, the scroll bar does not show up (it does in Firefox), and the mouse scroll does not work unless it is over the box (it works in Firefox anywhere in the results table, even outside the boxes).