[BNM] htaccess file?

[AndrewGill73@gmail.com]

Hello BNM,

I was wondering if anyone could help me figure out where I'm going wrong
with .htaccess ?

I want to allow a user to type this url:
http://32.example.com

To get the equivalent of this:
http://www.example.com/mydir/32/

My .htaccess file is below:
IndexIgnore *
AddType application/x-httpd-php .htm .html

RewriteEngine  on
RewriteCond   %{HTTP_HOST}                 ^www\.[^.]+\.example\.com$
RewriteRule   ^(.+)                        %{HTTP_HOST}$1          [C]
RewriteRule   ^www\.([^.]+)\.example\.com(.*) /mydir$1$2


As you can probably tell, I'm quite new to editing htaccess files! Many
thanks in advance!

cheers,
Andy Gill