1. How can I insert an image.
A: YOu can use [ img ] [ /img ] tag or {{image}} action. I am working on the documents about how to use it. Also you can insert a table by using [TABLE] or {{table}}
2. How can I add bookmark this page like the link on wakkawiki..
You mean the footnote? YOu can use {{fn yournote}}, but it is only avaible in developping version.
3. How can I add make this your homepage like the link on wakkawiki.
Add {{toc}} in the page
4. What is mindmap.
That is a jar plugin from wikka, here is some info:
http://wikka.jsnx.com/Mod039fMindMapMod
5. What is googleform.
Add {{googleform}} to your page, you can see a google search form.
I guess that is more than a few questions. I like the module very much. It is easier to install than many of the wiki modules. Not a well integrated into the XOOPS environment as some. Let's work to make it better!!
Good Work!
Best Wishes,