Wikibooks is an offshoot of the original Wikipedia project, run by the same group. Pictures are only hosted on Wikibooks or WikiMedia servers, outside pictures will show as links, rather than pictures.
Although posting is fairly easy, I'm willing to help, especially with pictures. Contact me if you've got something you want to contribute but aren't comfortable posting yourself. If you see soemthing on the Wiki that you think can be improved, please make those improvements
Text posted there is under the GNU Free Documentation License. Images must be under a compatible license--GNU, Creative Commons or Public Domain. Getting the licensing sorted before there's lots of contributions is the main reason for moving immediatly.