Problem with graphics and page layout on site www.wikimedstudent.com 

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I have edited the .htaccess file by inserting the following code (minus the second line ''RewriteBase /~username'' which if inserted does not allow the page to load at all)
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RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^wiki/(.*)$ w/index.php?title=$1 [PT,L,QSA]
RewriteRule ^wiki/*$ wiki/ [L,QSA]
RewriteRule ^/*$ wiki/ [L,QSA]

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I have edited the LocalSettings.php file which is below - and added two lines at the bottom above the ?>

$wgScriptPath = "/wiki";
$wgArticlePath = "$wgScriptPath/$1";

which made a difference, but does not improve the graphics or layout of the page. 


<?php

# This file was automatically generated by the MediaWiki installer.
# If you make manual changes, please keep track in case you need to
# recreate them later.
#
# See includes/DefaultSettings.php for all configurable settings
# and their default values, but don't forget to make changes in _this_
# file, not there.

# If you customize your file layout, set $IP to the directory that contains
# the other MediaWiki files. It will be used as a base to locate files.
if( defined( 'MW_INSTALL_PATH' ) ) {
	$IP = MW_INSTALL_PATH;
} else {
	$IP = dirname( __FILE__ );
}

$path = array( $IP, "$IP/includes", "$IP/languages" );
set_include_path( implode( PATH_SEPARATOR, $path ) );

require_once( "includes/DefaultSettings.php" );

# If PHP's memory limit is very low, some operations may fail.
# ini_set( 'memory_limit', '20M' );

if ( $wgCommandLineMode ) {
	if ( isset( $_SERVER ) && array_key_exists( 'REQUEST_METHOD', $_SERVER ) ) {
		die( "This script must be run from the command line\n" );
	}
} elseif ( empty( $wgNoOutputBuffer ) ) {
	## Compress output if the browser supports it
	if( !ini_get( 'zlib.output_compression' ) ) @ob_start( 'ob_gzhandler' );
}

$wgSitename         = "WikiMedStudent";

$wgScriptPath	    = "/wiki";
$wgScript           = "$wgScriptPath/index.php";
$wgRedirectScript   = "$wgScriptPath/redirect.php";

## For more information on customizing the URLs please see:
## http://meta.wikimedia.org/wiki/Eliminating_index.php_from_the_url
## If using PHP as a CGI module, the ?title= style usually must be used.
# $wgArticlePath      = "$wgScriptPath/$1";
$wgArticlePath      = "$wgScript?title=$1";

$wgStylePath        = "$wgScriptPath/skins";
$wgStyleDirectory   = "$IP/skins";
$wgLogo             = "$wgpublic_html/mediawiki/images/wikimed.jpg";

$wgUploadPath       = "$wgScriptPath/images";
$wgUploadDirectory  = "$IP/images";

$wgEnableEmail = true;
$wgEnableUserEmail = true;

$wgEmergencyContact = "Admin@wikimedstudent.com";
$wgPasswordSender	= "Admin@wikimedstudent.com";

## For a detailed description of the following switches see
## http://meta.wikimedia.org/Enotif and http://meta.wikimedia.org/Eauthent
## There are many more options for fine tuning available see
## /includes/DefaultSettings.php
## UPO means: this is also a user preference option
$wgEnotifUserTalk = true; # UPO
$wgEnotifWatchlist = true; # UPO
$wgEmailAuthentication = true;

# Experimental charset support for MySQL 4.1/5.0.
$wgDBmysql5 = false;

## Shared memory settings
$wgMainCacheType = CACHE_NONE;
$wgMemCachedServers = array();

## To enable image uploads, make sure the 'images' directory
## is writable, then set this to true:
$wgEnableUploads		= true;
$wgUseImageResize		= true;
# $wgUseImageMagick = true;
# $wgImageMagickConvertCommand = "/usr/bin/convert";

## If you want to use image uploads under safe mode,
## create the directories images/archive, images/thumb and
## images/temp, and make them all writable. Then uncomment
## this, if it's not already uncommented:
$wgHashedUploadDirectory = false;

## If you have the appropriate support software installed
## you can enable inline LaTeX equations:
$wgUseTeX	         = false;
$wgMathPath         = "{$wgUploadPath}/math";
$wgMathDirectory    = "{$wgUploadDirectory}/math";
$wgTmpDirectory     = "{$wgUploadDirectory}/tmp";

$wgLocalInterwiki   = $wgSitename;

$wgLanguageCode = "en";

$wgProxyKey = "4e25f8ba18a8cd6f657f0ee364fe5b3e47dd425476030755547b1d832ef1c46c";

## Default skin: you can change the default skin. Use the internal symbolic
## names, ie 'standard', 'nostalgia', 'cologneblue', 'monobook':
$wgDefaultSkin = 'monobook';

## For attaching licensing metadata to pages, and displaying an
## appropriate copyright notice / icon. GNU Free Documentation
## License and Creative Commons licenses are supported so far.
# $wgEnableCreativeCommonsRdf = true;
$wgRightsPage = ""; # Set to the title of a wiki page that describes your license/copyright
$wgRightsUrl = "";
$wgRightsText = "";
$wgRightsIcon = "";
# $wgRightsCode = ""; # Not yet used

$wgDiff3 = "";

# When you make changes to this configuration file, this will make
# sure that cached pages are cleared.
$configdate = gmdate( 'YmdHis', @filemtime( __FILE__ ) );
$wgCacheEpoch = max( $wgCacheEpoch, $configdate );

$wgScriptPath = "/wiki";
$wgArticlePath = "$wgScriptPath/$1";
?>

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Thank you