download elvarg or osrs pk.
First go to spriteloader
uncommment the method where it dumps your sprites
than rename the folder to sprites add the next number lets say ur last sprite in dump is 500.png than the next one needs to be called 501.png else the sprite packer will fail.
for some reason galkons spritepacker doesnt work on ruse sprites that why i said download elvarg or osrspk.