Maps are the individual pieces that make up a shader. You may have different maps (or not) for attributes such as Bump, Specular, Glossines, Transparency, Opacity, Diffuse, etc… Maps that you say to be in posession of are, supossably image maps (jpeg, bmp, tga, …) also referred to as “textures”.
If you can pack some nice hi-res textures into a zip for everyone, that’d be a great contribution!