Latest may not work, requires XP SP3 and these machines could still be running SP2. IIRC the last Gimp to support SP2 was a 2.6x (and not the later ones... 2.6.8 or so).
These machines would however happily run a Linux (even a 64-bit one if the processor allows).
These machines would however happily run a Linux (even a 64-bit one if the processor allows).