Find out if he is being supervised by an agent with the FL Dept of Corrections or a county Probation Agent (not sure how FL is aligned). If so, and if FL has similar laws as WI, you should be able to talk to his agent and find out not only specifics regarding his case, but also, what his rules allow him to do and prohibit him from doing since it is all public record (at least it is in WI). If he is not being supervised, you could contact the clerk of courts office in the county he was convicted and ask to be provided a copy of the judgment of conviction and the criminal complaint/charging document.
As a society, we have done a great disservice to our children with the concept of "stranger danger" when it comes to sex offenders. Statistically speaking, a majority of sexual assaults that involve children are with a perpatrator who is known to the victim and family. Sex Offenders thrive in an environment in which they can groom, manipulate and control the victim over a period of time. Educating children on the concept of "good touch / bad touch" and creating an environment in which they are not afraid to talk to you about sensative subjects will do far more to keep children safe than scaring them with a concept that only promotes fear.
If you are interested in finding out if there are additional registered sex offenders in your neighborhood, a good website to use is www.watchdog.com
in addition to any state websites that may be accessible.
BTW, not all sex offenders are required to register. If they have old convictions which pre-date registration requirements, or if they have convictions which are not required to register by state statutes, they could be living in your neighborhood right now and you would not even know it. I don't mean for this to sound preachy or imply that you may not already be taking these steps, but please, educate your children, talk to your children, know where they are suppose to be and who they are interacting with (coaches, teachers, other children parents), that is the best way to keep your children safe.