Resource types

Since upgrading to 1.2.1, I am no longer able to upload files to my site through the moodle interface.  I keep getting the following error message:

move_uploaded_file(/home/dokusha/www/www/moodle/data/11//Reading1.doc): failed to open stream: Permission denied in /home/dokusha/www/www/moodle/files/index.php on line 124

Warning: move_uploaded_file(): Unable to move '/tmp/phpd2Q1KV' to '/home/dokusha/www/www/moodle/data/11//Reading1.doc' in /home/dokusha/www/www/moodle/files/index.php on line 124

line 124 in this file reads as follows:
if (move_uploaded_file($userfile['tmp_name'], $newfile)) {

any ideas??