yet again, I thank you for your help mate, I finally have Normal Maps working on the viewport!
Too bad I have to manually type the position of the lights, but hey, It's better than nothing!
I have quickly put toguether a .RAR file with the shaders, the video tutorial you made and a SCN file with the normal maps applied, it might be useful to other people, here's the link:
RapidShare: Easy Filehosting