i download the Wrox Object Builder from p2p.wrox.com.
but when i run builder.exe,
this program message

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.NotImplementedException: The method or operation is not implemented.
   at Builder.Table.Load()
   at Builder.Table..ctor(Project project, String name)
   at Builder.TablesNode..ctor(ProjectNode projectNode)
   at Builder.ProjectNode..ctor(Project project, Main main)
   at Builder.Main.set_Project(Project Value)
   at Builder.Main.CreateProject()
   at Builder.Main.Main_Load(Object sender, EventArgs e)
   at System.Windows.Forms.Form.OnLoad(EventArgs e)
   at System.Windows.Forms.Form.OnCreateControl()
   at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.WmShowWindow(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Mes sage& m)
   at System.Windows.Forms.ContainerControl.WndProc(Mess age& m)
   at System.Windows.Forms.Form.WmShowWindow(Message& m)
   at System.Windows.Forms.Form.WndProc(Message& m)
   at System.Windows.Forms.ControlNativeWindow.OnMessage (Message& m)
   at System.Windows.Forms.ControlNativeWindow.WndProc(M essage& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Loaded Assemblies **************
mscorlib
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.573
    CodeBase: file:///c:/winnt/microsoft.net/framework/v1.1.4322/mscorlib.dll
----------------------------------------
Builder
    Assembly Version: 1.0.907.20180
    Win32 Version: 1.0.907.20180
    CodeBase: file:///C:/Documents%20and%20Settings/hy/×ÀÃæ/Builder/Builder.exe
----------------------------------------
System.Windows.Forms
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.573
    CodeBase: file:///c:/winnt/assembly/gac/system.windows.forms/1.0.5000.0__b77a5c561934e089/system.windows.forms.dll
----------------------------------------
System
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.573
    CodeBase: file:///c:/winnt/assembly/gac/system/1.0.5000.0__b77a5c561934e089/system.dll
----------------------------------------
System.Drawing
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.573
    CodeBase: file:///c:/winnt/assembly/gac/system.drawing/1.0.5000.0__b03f5f7f11d50a3a/system.drawing.dll
----------------------------------------
System.Data
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.573
    CodeBase: file:///c:/winnt/assembly/gac/system.data/1.0.5000.0__b77a5c561934e089/system.data.dll
----------------------------------------
Microsoft.VisualBasic
    Assembly Version: 7.0.5000.0
    Win32 Version: 7.10.3052.4
    CodeBase: file:///c:/winnt/assembly/gac/microsoft.visualbasic/7.0.5000.0__b03f5f7f11d50a3a/microsoft.visualbasic.dll
----------------------------------------
System.EnterpriseServices
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.573
    CodeBase: file:///c:/winnt/assembly/gac/system.enterpriseservices/1.0.5000.0__b03f5f7f11d50a3a/system.enterpriseservices.dll
----------------------------------------
System.Xml
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.573
    CodeBase: file:///c:/winnt/assembly/gac/system.xml/1.0.5000.0__b77a5c561934e089/system.xml.dll
----------------------------------------

************** JIT Debugging **************
To enable just in time (JIT) debugging, the config file for this
application or machine (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the machine
rather than being handled by this dialog.

why?????????

[p.s] sorry ,my english is very very bad :)