Let's try to load the data from flatfile, or rather start.

src/main/java/com/graywolf336/jail/JailIO.java

@@ -1,7 +1,13 @@
 package com.graywolf336.jail;
 
+import java.io.File;
+
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.configuration.file.YamlConfiguration;
+
 public class JailIO {
 	private JailMain pl;
+	private FileConfiguration flat;
 	private int storage; //0 = flatfile, 1 = sqlite, 2 = mysql
 	
 	public JailIO(JailMain plugin) {
@@ -17,7 +23,7 @@ public class JailIO {
 		}
 	}
 	
-	public void PrepareStorage() {
+	public void prepareStorage() {
 		switch(storage) {
 			case 1:
 				//prepare sqlite, I need to research this
@@ -26,7 +32,23 @@ public class JailIO {
 				//prepare mysql, research this as well
 				break;
 			default:
-				//File system, prepare it somehow.. Maybe load in the files
+				flat = YamlConfiguration.loadConfiguration(new File(pl.getDataFolder(), "data.yml"));
+				break;
+		}
+	}
+	
+	public void loadJails() {
+		switch(storage) {
+			case 1:
+				//load the jails from sqlite
+				break;
+			case 2:
+				//load the jails from mysql
+				break;
+			default:
+				//load the jails from flatfile
+				if(flat.contains("jails"))
+					pl.getLogger().info("Jails exists");
 				break;
 		}
 	}

src/main/java/com/graywolf336/jail/JailMain.java

@@ -20,7 +20,8 @@ public class JailMain extends JavaPlugin {
 		loadConfig();
 		
 		io = new JailIO(this);
-		io.PrepareStorage();
+		io.prepareStorage();
+		io.loadJails();
 		
 		jm = new JailManager(this);
 		cmdHand = new CommandHandler(this);