Options +FollowSymLinks
 
RewriteEngine on
 
RewriteRule tags/(.*).html$ http://www.XXX.com/vb/tags.php?tag=$1 [L,R=301]
RewriteRule ^t(.*)-new-post.html$ http://www.XXX.com/vb/showthread.php?goto=newpost&t=$1 [L,R=301]
RewriteRule ^t(.*)-([0-9]+).html$ http://www.XXX.com/vb/showthread.php?t=$1&page=$2 [L,R=301] 
RewriteRule ^t(.*).html$ http://www.XXX.com/vb/showthread.php?t=$1 [L,R=301]
RewriteRule ^f(.*)-([0-9]+).html$ http://www.XXX.com/vb/forumdisplay.php?f=$1&order=desc&page=$2 [L,R=301]
RewriteRule ^f(.*).html$ http://www.XXX.com/vb/forumdisplay.php?f=$1 [L,R=301]