I don't know if you created a local user for him and in what group it is etc. but you can give everyone permission to write in your http root by running this:
Code:
su -
cd /var/www/
chmod +w /var/www/html
Or to also give the other directories and files under /var/www/html write access then run this:
Code:
su -
cd /var/www/
chmod -R +w /var/www/html