You are almost done!
0. Create a new database, for example::
mysqladmin create flyspray
1. Ensure that ${MY_INSTALLDIR}/${PN}.conf.php is writeable by the
webserver:
chown apache:apache ${MY_INSTALLDIR}/${PN}.conf.php
2. Login on
http://${VHOST_HOSTNAME}/${VHOST_APPDIR}
and follow the directions.