[Mediawiki-l] having problems in using Media Wiki 1.3.1

[Southern Phoenix]

Hi,

I would like to use Media Wiki 1.3.1 for a project in Japanese,
and my friend has just installed it successfully.

However, as I try to edit the Main Page and save it, it always 
return to the preceding version.  

Does this problem have anything to do with the .htaccess file ?

please advise.
thank you very much in advance.

Hendry

ps: this is the .htaccess we have right now.

------------------------

# Allow wiki articles to start with a period
<Files .*>
  Order Deny,Allow
  Allow From All
</Files>

<Files *.phtml>
  Deny From All
</Files>

<Files LocalSettings.php>
  Deny From All
</Files>

# Allow rewriting URLs
RewriteEngine on
RewriteBase /jabionpedia

# Redirect old /wiki.phtml?title= and index.php urls
#RewriteRule wiki\.phtml\?title=(.*)$ $1 [L]
RewriteCond %{REQUEST_URI} !index\.php\?title=(.*)&action=edit.*$
#RewriteCond %{QUERY_STRING} !title=(.*)&action=edit.*$
#RewriteRule index\.php/(.*)$ $1 [L]

# Don't rewrite requests for files in MediaWiki subdirectories,
# MediaWiki PHP files, HTTP error documents, favicon.ico, or robots.txt
RewriteCond %{REQUEST_URI} !(stylesheets|images)/
RewriteCond %{REQUEST_URI} !(redirect|index).php
RewriteCond %{REQUEST_URI} !favicon.ico
#RewriteCond %{QUERY_STRING} !action=
#RewriteCond %{QUERY_STRING} !Userlogin

# Rewrite http://wiki.domain.tld/article properly, this is the main rule
RewriteRule ^(.*)$ index.php/$1 [L]

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