Hier noch mal das was ich ich eingebunden habe:
RewriteEngine On
RewriteCond %{HTTP_Host} ^www.musicstar-hosting\.de$ [NC]
RewriteRule ^(.*)$ http://musicstar-hosting.de/$1 [R=301,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([^./]+)/([^/.]+)/([^/.]+)/([^/.]+)/$ modules.php?name=blog&vara=$1&varb=$2&varc=$3&vard=$4 [L]
RewriteRule ^([^./]+)/([^/.]+)/([^/.]+)/$ modules.php?name=blog&vara=$1&varb=$2&varc=$3 [L]
RewriteRule ^([^./]+)/([^/.]+)/$ modules.php?name=blog&vara=$1&varb=$2 [L]
RewriteRule ^([^./]+)/([^/.]+)/([^/.]+)/([^/.]+)$ modules.php?name=blog&vara=$1&varb=$2&varc=$3&vard=$4 [L]
RewriteRule ^([^./]+)/([^/.]+)/([^/.]+)$ modules.php?name=blog&vara=$1&varb=$2&varc=$3 [L]
RewriteRule ^([^./]+)/([^/.]+)$ modules.php?name=blog&vara=$1&varb=$2 [L]