Question alright, i need some help with lighting and textures

for my RPG i am gonna make
http://www.crystalspace3d.org/mediawiki/images/c/cb/Projects_Planeshift.jpg
i am also gonna need help with weapons, and armors, scince i haven't touched my GIMP program in about a month and a half, i propably won't be any good, anybody wanna help