Are the JBoss and MySQL services listed as Windows services in the services applet?
If yes, manually start the MySQL service (from the services applet). Does it successfully start?
If yes, manually start the JBoss service. Does it successfully start? (you mentioned this is a "yes").
Check the deploy folder of JBoss. Are the LiveCycle EARs files listed in it?
If yes, tail the server.log of JBoss in /log for about 5-10 minutes until the log says JBoss has succesfully started.
Check if you can load the login page of the AdminUI at http://server:8080/adminui
If you get to this stage, run LiveCycle Configuration Manager (LCM), uncheck all checkboxes up until "Initialize database" and proceed with the rest of the steps.