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Not sure about the first module, maybe wfsections. Maybe someone will make a suggestion for you on to.
Xoops2.0.13.1 comes with a links module I think.
xcgallery is a good photos module
There is a news module also with 2.0.13.1
What do you mean by "technical info"?
For an about us, personally I would just creat an aboutus.php file and wrap it into the XOOPS layout.
Probably the same with policy
And contactplus is a good contact us module.
Hope that helps.
There are lots of modules in the repository. Install xoops, and try them out. I am sure you will probably find the ones you need.
Let us know.
Steve
s l s h a n k l e @ b e l l s o u t h . n e t