
Try this. saved as a gif, still didn't go under 50k so I selected web option.
( ,
Mon 29 Sep 2008, 9:04,
archived)

will not work well, since the jpeg artefacts mess up the solid area of colour that gif loves so much.
You would get a much smaller file from the original image source saved as gif.
( ,
Mon 29 Sep 2008, 9:08,
archived)
You would get a much smaller file from the original image source saved as gif.