RewriteEngine On
RewriteBase /
RewriteRule ^(typo3|typo3temp|typo3conf|t3lib|tslib|fileadmin|uploads|showpic\.php)/ - [L]
RewriteRule ^typo3$ typo3/index_re.php [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-l
RewriteRule .* /index.php [L]