I found this site for u which has textures too. I post it here, so i would not have to do another topic for it.
http://www.cgtextures.com/And if i understood right they can be used for mapping:
Conditions of Use
Use of the Textures is only allowed under one or more of the following conditions:
- Private or commercial use
- Use in 2D or 3D computer graphics, movies and printed media
- Incorporation in computer games, 3D models
- Selling 3D models bundled with modified versions of the textures, when the texture is customized for the 3D model