URL Rewriting Help

[robfrew]

I need some help with some URL rewriting rules in .htaccess.

The current setup I have does not work correctly. Here it is:

IndexIgnore .htaccess */.??* *~ *# */HEADER* */README* */_vti*

<Limit GET POST>
order deny,allow
deny from all
allow from all
</Limit>
<Limit PUT DELETE>
order deny,allow
deny from all
</Limit>

RewriteEngine On
RewriteCond %{HTTP_HOST} ^domain.com [NC]
RewriteRule ^(.*)$ http://www.domain.com/$1 [R=301]
# If the requested file or directory don't exist then redirect to the
# index.php and request the file. It will fetch it from the database
# or generate a "not found" message
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^swift/p$ /swift/p/
RewriteRule ^swift/p/$ /ext_forum.php
RewriteRule ^swift/p/([0-9]+)$ /swift/p/$1/
RewriteRule ^swift/p/([0-9]+)/$ /ext_forum.php?_p=$1
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^swift/i$ /swift/i/
RewriteRule ^swift/i/$ /ext_post.php
RewriteRule ^swift/i/([0-9]+)$ /swift/i/$1/
RewriteRule ^swift/i/([0-9]+)/$ /ext_post.php?_i=$1
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^swift/i/([0-9]+)/p$ /swift/i/$1/p/
RewriteRule ^swift/i/([0-9]+)/p/$ /ext_post.php?_i=$1
RewriteRule ^swift/i/([0-9]+)/p/([0-9]+)$ /swift/i/$1/p/$2/
RewriteRule ^swift/i/([0-9]+)/p/([0-9]+)/$ /ext_post.php?_i=$1&_p=$2
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^swift/(.+)/(.+)/([A-Z][A-Z])$ /swift/$1/$2/$3/ [NC, R]
RewriteRule ^swifts/(.+)/(.+)/([A-Z][A-Z])/$ /swift/city.php?id=$2&state=$3&st=$1 [NC, L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([a-zA-Z0-9_-]+)$ u.php?u=$1
RewriteRule ^([a-zA-Z0-9_-]+)/$ u.php?u=$1

Essentially, what I need it to do is this. The first condition and rule redirects anyone who just types domain.com to www.domain.com.

RewriteCond %{HTTP_HOST} ^domain.com [NC]
RewriteRule ^(.*)$ http://www.domain.com/$1 [R=301]

The 2 - 5 conditions and rules makes a php script search engine friendly.

And the last condition and rule allows usernames in URLS to be passed to a php script.

All of this works fine, except if I try to go to a real directory, it will not automatically pull up the index.php page. If I take away the url rewriting, it works again. For example, if I try to go to http://www.domain.com/mydir/, I get a page not found. However, if I go to http://www.domain.com/mydir/index.php, it works.

Any ideas?

Rob