sphinx needs also to be in etc/sphinxsearch.
i've told you to read the tutorial from top to bottom.
what do you think sudo cp /var/www/sphinx.conf /etc/sphinxsearch/
this does ?
edit you files properly!
install mc and edit the files easier
sudo apt-get install mc
mc(to activate it)
if not, use:
sudo nano /etc/sphinxsearch/sphinx.conf (the file should be here)