Oddly none of my image icons were/are FS's -

Duh, never minnnd, figured it out (I overlooked setting in FS's settings, the associations for some files)

HWIW -

Before I realized what was wrong, on my Vista, I succeeded in resolving that annoyance on Vista by first re-associating image files to always open with Windows Photo Gallery, then repeating that re-association but that time to 'always open' with 'FS' viewer, but on the XP, I still couldn't get the FS icon to display.