Could you see the log from connection and intrusion analysis?
if it work , accroding to your pic, i think your are config fine.
just make sure you've deploy the policy , and no firewall between sensor and syslog server,
or open nessery port.
if y...
If the syslog server is running with linux , you could use tcpdump command to make sure , is sourcefire not sending syslog , or the server syslog deamon not work?
if it's running with windows, you could use wireshark for figure out.