It works better than 6.x branch due Drupal 7 ships with Jquery 1.4 and this makes the module work better. Also Drupal 7 includes Jquery UI in core, so Jquery UI module is not required.
Browser compatibility.
Tested in Firefox 3, Chrome, Chromium, Opera 9, Safari and Internet Explorer 8.
Doesn't work in Internet Explorer 6 and 7.
Internet Explorer 8 presents a small css bug in the first image of the fancy insert widget. (The margin-right for the first image is not working)