write prob in webdav

["azeem ahmad" <azeem81 msn com>]

hi list
i have configured webdav, its working well while copying or reading the 
contents, but its not writing or deleting any file, y is that so.
apache is working as user apache
below is the config


Alias /webdav/ "/var/www/webdav/"
<Directory /var/www/webdav>
DAV on
AuthType Basic
AuthName "WebDAV Storage"
AuthUserFile /etc/httpd/passwd/passwd.dav
AuthMySQLEnable off
</Directory>

<Directory /var/www/webdav/must/>
       Options All
       require user must
</Directory>

and below is dir permissions
drwxr-x---  2 apache apache 4096 Nov 28 02:32 must

Regards
Azeem