See also MediaWiki versus Tiki

__TOC__

Remove it and insert a {maketoc} tag using the button.

__NO_TOC__

Remove it, it's not needed.
Tiki does not do toc's automatically.

__FORCETOC__

Remove it. 😉

Square brackets

If you don't escape your square brackets, [this] will turn into this.
Write it like:

[[this]

~pp~

Replace it with {CODE(wrap="1", colors="c++")} for C++ code, or {CODE(wrap="1")} for non-C++ code (pre).
Use the search/replace function.

~/pp~

Replace it with {CODE} (ending tag).

<br style="clear: both;">

Replace that evil HTML with the %clear% dynamic variable.

[http://1.4.0|1.4.0]

A very peculiar behaviour of the Tiki MW importer. 😊
Very often three digit version numbers turns into a link.
It should be: 1.4.0 rather than 1.4.0, right?

Templates

This is an example of a MediaWiki template in use:

Layout begin:

{{Layout_box1|

Use 'Layout_box1' as the 'class parameter in a DIV or BOX tag, like this:

{DIV(class="Layout_box1")}
the content
{DIV}

Image:

Image=Big_Logo_Visual C++.jpg‎|

Becomes:

{IMG(src="img/wiki_up/Big_Logo_Visual_C++.jpg",imalign="left")}{IMG}

The images from the MediaWiki dump are stored in img/wiki_up, and the image name is using underscores instead of spaces in the name.
And we are aligning the image to the left.

Title:

Title=Installing the Ogre SDK for Visual C++|

Becomes:

-=Installing the Ogre SDK for Visual C++=-

Description:

Description=Use this guide to install the precompiled OGRE SDK for Microsoft Visual C++. Once you have OGRE downloaded and setup, learn how to ((Setting Up An Application - Shoggoth|setup your first application)).

Simply becomes:

Use this guide to install the precompiled OGRE SDK for Microsoft Visual C++. Once you have OGRE downloaded and setup, learn how to ((Setting Up An Application - Shoggoth|setup your first application)).

Just remove the Description= bit.

Layout end:

}}

You can remove it. It's replaced by either the {BOX} or {DIV} tags. (End tags).

Result:

{DIV(class="Layout_box1")}{IMG(src="img/wiki_up/Big_Logo_Visual_C++.jpg",imalign="left")}{IMG}
-=Installing the Ogre SDK for Visual C++=-
Use this guide to install the precompiled OGRE SDK for Microsoft Visual C++. Once you have OGRE downloaded and setup, learn how to ((Setting Up An Application - Shoggoth|setup your first application)).
{DIV}

Rendered result:

Installing the Ogre SDK for Visual C++

Use this guide to install the precompiled OGRE SDK for Microsoft Visual C++. Once you have OGRE downloaded and setup, learn how to setup your first application.

As you can see, the image does not have transparency.
It would look much better with a transparent background (use the magic wand and cut the background - if you can't, add a transparency layer). Use png.

Look at Wiki Styles for a list of styles.