Hello
I really need your help and experience in my choice of wiki since I am very new to this. Can you please help me?

I'm looking for a wiki with:

1. Free download and can be installd on a separate server.
2. Datastorage in a database, preferably MySQL
3. Support WYSIWYG either default or by plugin
4. Good ability to change the look either by templates or some other way. Support treeview hierarchy.
5. When you create a new page - I want it to be mandatory to select a category for the page and that the choices are pre-defined and expressed with radiobuttons or some other way.
6. I want to be able to block a page from editing.
7. Older versions of a page must be available so no data are lost.
8. Good full text search
9. Easy to insert and edit images.
10. If it has a map-function that allows users to set a point on the map with a link to a wiki-page it is a bonus.

Please. Does anyone know a wiki that fullfills these requirements? Or can it be achieved with plugins?
So far I've been looking at MediaWiki and TikiWiki but don'd know yet.

Tank you
//Alex