[PHP] Character preview (charsim library?)

[highway]

Hello guys i'm trying to think a way to display players in my website. I found nothing about this in the google, but i found somethings here in the forum about pallets.
I want to do something like this: http://ro-character-simulator.ratemyserver.net/
 

Someone can tell me how this works, and give me a tip to how to do this? unpacking the .spr? and then, what should i do?

I found these links, but its not helped me:
http://rathena.org/board/topic/79324-php-unpack-files-like-how-do-you/?hl=charsim#entry182904

http://rathena.org/board/topic/68961-free-char-sim-script-donwload/?hl=charsim#entry127928

http://rathena.org/board/topic/70264-applying-pal-to-created-image-file-using-php/?hl=charsim#entry135559

http://rathena.org/board/topic/65477-php-and-palettepal/#entry109951

THANKS A LOT!

Edited June 6, 2013 by highway

[highway]

Bump! Anyone can help me with this? I just want a tip, where to start it. Thanks again

[highway]

Last bump, 50 views, a week and nothing.

Ok guys, i found a solution to extract the spr, and act.