I edited my rewrite_rules.php and it now looks like this
<?php
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$pun_rewrite_rules = array(
'/^topic[\/_-]?([0-9]+).*(new|last)[\/_-]?(post)?s?(\.msf?|\/)?$/i' => 'viewtopic.php?id=$1&action=$2',
'/^post[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'viewtopic.php?pid=$1',
'/^(forum|topic)[\/_-]?([0-9]+).*[\/_-]p(age)?[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'view$1.php?id=$2&p=$4',
'/^(f|t)(orum|opic)[\/_-]?([0-9]+)[\/_-](rss|atom)(\.msf?|\/)?$/i' => 'extern.php?action=feed&$1id=$3&type=$4',
'/^(forum|topic)[\/_-]?([0-9]+).*(\.msf?|\/)?$/i' => 'view$1.php?id=$2',
'/^new[\/_-]?reply[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'post.php?tid=$1',
'/^new[\/_-]?reply[\/_-]?([0-9]+)[\/_-]?quote[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'post.php?tid=$1&qid=$2',
'/^new[\/_-]?topic[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'post.php?fid=$1',
'/^(delete|edit)[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => '$1.php?id=$2',
'/^(login|search|register)(\.msf?|\/)?$/i' => '$1.php',
'/^logout[\/_-]?([0-9]+)[\/_-]([a-z0-9]+)(\.msf?|\/)?$/i' => 'login.php?action=out&id=$1&csrf_token=$2',
'/^request[\/_-]?password(\.msf?|\/)?$/i' => 'login.php?action=forget',
'/^user[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'profile.php?id=$1',
'/^user[\/_-]?([0-9]+)[\/_-]?([a-z]+)(\.msf?|\/)?$/i' => 'profile.php?section=$2&id=$1',
'/^(change|delete|upload)[\/_-]?(email|pass|avatar|user)(word)?[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'profile.php?action=$1_$2&id=$4',
'/^change[\/_-]?(email|pass)(word)?[\/_-]?([0-9]+)[\/_-]([a-zA-Z0-9]+)(\.msf?|\/)?$/i' => 'profile.php?action=change_$1&id=$3&key=$4',
'/^search[\/_-]?(new|recent|unanswered|subscriptions)(\.msf?|\/)?$/i' => 'search.php?action=show_$1',
'/^search[\/_-]?(new|recent|unanswered|subscriptions)[\/_-]p(age)?[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'search.php?action=show_$1&p=$3',
'/^search[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'search.php?search_id=$1',
'/^search[\/_-]?([0-9]+)[\/_-]?p(age)?[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'search.php?search_id=$1&p=$3',
'/^search[\/_-]?(posts|topics)[\/_-]?user[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'search.php?action=show_user_$1&user_id=$2',
'/^search[\/_-]?(posts|topics)[\/_-]?user[\/_-]?([0-9]+)[\/_-]?p(age)?[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'search.php?action=show_user_$1&user_id=$2&p=$4',
'/^search\/k(.*)\/([0-9-]+)\/a(.*)\/(message|subject|all)\/([0-9]+)\/(ASC|DESC)\/(posts|topics)\/?$/i' => 'search.php?action=search&keywords=$1&author=$3&forum=$2&search_in=$4&sort_by=$5&sort_dir=$6&show_as=$7',
'/^search\/k(.*)\/([0-9-]+)\/a(.*)\/(message|subject|all)\/([0-9]+)\/(ASC|DESC)\/(posts|topics)\/page\/([0-9]+)\/?$/i' => 'search.php?action=search&keywords=$1&author=$3&forum=$2&search_in=$4&sort_by=$5&sort_dir=$6&show_as=$7&p=$8',
'/^search-k(.*)-([0-9-]+)-a(.*)-(message|subject|all)-([0-9]+)-(ASC|DESC)-(posts|topics).msf?$/i' => 'search.php?action=search&keywords=$1&author=$3&forum=$2&search_in=$4&sort_by=$5&sort_dir=$6&show_as=$7',
'/^search-k(.*)-(message|subject|all)-a(.*)-([0-9]+)-(ASC|DESC)-([0-9-]+)-(posts|topics)-p([0-9]+).msf?$/i' => 'search.php?action=search&keywords=$1&author=$3&forum=$6&search_in=$2&sort_by=$4&sort_dir=$5&show_as=$7&p=$8',
'/^users(\.msf?|\/)?$/i' => 'userlist.php',
'/^users\/(.*)\/([0-9-]+)\/?([a-z_]+)[\/_-]([a-zA-Z]+)[\/_-]p(age)?[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'userlist.php?username=$1&show_group=$2&sort_by=$3&sort_dir=$4&p=$6',
'/^(email|report|subscribe|unsubscribe)[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'misc.php?$1=$2',
'/^(mark|rules)[\/_-]?(read)?(\.msf?|\/)?$/i' => 'misc.php?action=$1$2',
'/^mark[\/_-](forum)[\/_-]?([0-9]+)[\/_-](read)(\.msf?|\/)?$/i' => 'misc.php?action=markforumread&fid=$2',
'/^help[\/_-]([a-z]+)(\.msf?|\/)?$/i' => 'help.php?section=$1',
'/^moderate[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'moderate.php?fid=$1',
'/^move_topics[\/_-]?([0-9]+)[\/_-]([0-9]+)(\.msf?|\/)?$/i' => 'moderate.php?fid=$1&move_topics=$2',
'/^(open|close|stick|unstick)[\/_-]?([0-9]+)[\/_-]([0-9]+)[\/_-]([a-z0-9]+)(\.msf?|\/)?$/i' => 'moderate.php?fid=$2&$1=$3&csrf_token=$4',
'/^moderate[\/_-]?([0-9]+)[\/_-]?p(age)?[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'moderate.php?fid=$1&p=$3',
'/^moderate[\/_-]?([0-9]+)[\/_-]([0-9]+)(\.msf?|\/)?$/i' => 'moderate.php?fid=$1&tid=$2',
'/^moderate[\/_-]?([0-9]+)[\/_-]([0-9]+)[\/_-]?p(age)?[\/_-]?([0-9]+)(\.msf?|\/)?$/i' => 'moderate.php?fid=$1&tid=$2&p=$4',
'/^get_host[\/_-]?([0-9]+|[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})(\.msf?|\/)?$/i' => 'moderate.php?get_host=$1',
'/^admin(\.msf?|\/)?$/i' => 'admin/index.php',
'/^admin[\/_-]([a-z]+)(\.msf?|\/)?$/i' => 'admin/$1.php',
'/^admin[\/_-]?(options|extensions)[\/_-]([a-z]+)(\.msf?|\/)?$/i' => 'admin/$1.php?section=$2'
);
Now when i goto the forum all the links are .html, but if i click on the links it comes up with bad request. BUT if i navigate to: http://www.yoursite.com/punbb/forum1.msf it works.
How to i get all the page links to goto a .msf extension?