Replace $SCHEDULE_KEY, $SITE_NAME, and $PEER_UPDATE_KEY with their appropriate values.

0,15,30,45 * * * * curl -s "localhost/schedule.php?key=$SCHEDULE_KEY" >> /var/log/schedule.log 2>&1
2-59/5 * * * * php /var/www/$SITE_NAME/peerupdate.php $PEER_UPDATE_KEY >> /var/log/peerupdate.log
* * * * * indexer -c /etc/sphinxsearch/sphinx.conf --rotate delta requests_delta >/dev/null 2>&1
7 * * * * indexer -c /etc/sphinxsearch/sphinx.conf --rotate torrents >/dev/null 2>&1
7 0,12 * * * indexer -c /etc/sphinxsearch/sphinx.conf --rotate --all >/dev/null 2>&1
4 * * * * /usr/local/bin/backup

/usr/local/bin/backup is the script found here