Need help with Sguil? The first thing to do is probably to read the Sguil FAQ. With luck, your question has already been answered. You might also look to see if we've written up any OS Anomalies about your system.
If that still doesn't help, feel free to hop on the official IRC channel, #snort-gui on the irc.freenode.net server. Most of the Sguil developers hang out there during the day (USA's day, that is), as do a lot of pretty smart NSM analysts. Chances are quite good that someone there will be able to point you in the right direction.