Options +FollowSymlinks
Rewritebase forum/
 RewriteEngine on
 RewriteRule ^([a-z0-9_\-]*-(f|all)[0-9]+(p[0-9]+|/index[0-9]*)?\.html)$ forumdisplay.php/$1 [QSA,L]
 RewriteRule ^([a-z0-9_\-]*-(t|p)[0-9]+(p[0-9]+|/index[0-9]*)?\.html)$ showthread.php/$1 [QSA,L]
 RewriteCond %{REQUEST_URI} !(index\.php|\.css) [NC]
 RewriteRule ^(archive|sitemap)/(.*)$ $1/index.php/$2 [QSA,L]
 RewriteCond %{HTTP_HOST} !^www\.iddaa-tahmin\.com/forum
 RewriteRule (.*) http://www.iddaa-tahmin.com/forum/$1 [L,R=301]