GIMP Plugin Registry

Is there a way to auto load a sequence of files into layers ? I want to create an FLC from a sequence of images.

I have a number of FLCs on which I need to make a small change the color value of one color. All load fine except for 6 that show green in the file open dialog and and their colors reversed on loading. I thought the easiest fix might be to save the FLCs as an image sequence (using another package), load as layers, carry out the color change, then resave as an FLC.