I recently decided to copy my notes from SuperMemo to Evernote. Later, I'd like to do the opposite, but for now, below are the working instructions. This program will include all of your images, retain formatting (underlining, font size, italics, colors, etc.), and can run on your entire Supermemo collection.
1. Right-click a sub-collection in Supermemo (e.g. German) and select Export -> HTML (this creates the Q,A, and includes the images, apparently the only SuperMemo option that does.