Hacking firmware for a DS Lite ?

[yoyoloto]

Hi, can someone send me a link for the proper files to download for a DS Lite ? I am using R4-III upgrade compatible with DS Lite but I lost the CD and the files I first used were replaced to match my other DS which is not lite. I searched a bit over the internet and downloaded some stuff but it didnt work either, perhaps it wasnt for R4-III upgrade.

Thanks for the help

EDIT: problem solved