[XP Script] Working on GUIs, and Need HELP!

Code:
#===============================================================================

# Message GUI Window Screen

#-------------------------------------------------------------------------------

# By JayRay 4/22/2014

#

# To begin, this will be a windowed 'Message' hud that I want to use with Mousie

# that comes up after certain variables are created, and a switch is turned on

#

# The screen will have variables change depending on events used on the screen

# for this map, while Game Switch 10, New Hero Game Switch is in operation.

#

# Game Variables 38-53 hold message data

# Game Variables 66-67 hold the window's initial x/y position

# Game Switch 25 sets its visiblity on/off

#

#

#==============================================================================







#==============================================================================

# ** Window_MessageGui

#------------------------------------------------------------------------------

#  This window displays New Nero Data

#==============================================================================



class Window_MessageGui < Window_Base

  #---------------------------------------------------------------------------

  # * Object Initialization

  #---------------------------------------------------------------------------

  def initialize

    super(0, 0, 640, 480)

    self.contents     = Bitmap.new(width - 32, height - 32)

    self.back_opacity = 0

    self.opacity      = 0

    self.z            = 500000

    refresh

  end

  #---------------------------------------------------------------------------

  # * Refresh

  #---------------------------------------------------------------------------

  def refresh

    self.contents.clear

    # Acquire character info from variable data

    rog_talkerface        = $game_variables[38]

    rog_talkertitle       = $game_variables[39]

    rog_messagetitle      = $game_variables[40]

    rog_messtext1         = $game_variables[41]

    rog_messtext2         = $game_variables[42]

    rog_messtext3         = $game_variables[43]

    rog_messtext4         = $game_variables[44]

    rog_messtext5         = $game_variables[45]

    rog_messtext6         = $game_variables[46]

    rog_messtext7         = $game_variables[47]

    rog_reward1           = $game_variables[48]

    rog_reward2           = $game_variables[49]

    rog_reward3           = $game_variables[50]

    rog_reward4           = $game_variables[51]

    rog_goldreward        = $game_variables[52]

    rog_expreward         = $game_variables[53]

    # Acquire background from variable data

    # Render character info

     bitmap = RPG::Cache.picture("messagegui")

    self.contents.blt(0 , 0, bitmap, Rect.new(0,0,250,480))

    self.contents.draw_text(  0,  10, 200, 32, rog_talkerface.to_s)

    self.contents.draw_text(  0,  40, 200, 32, rog_talkertitle.to_s)

    self.contents.draw_text(  0,  70, 200, 32, rog_messagetitle.to_s)

    self.contents.draw_text(  0, 100, 200, 32, rog_messtext1.to_s)

    self.contents.draw_text(  0, 130, 200, 32, rog_messtext2.to_s)

    self.contents.draw_text(  0, 160, 200, 32, rog_messtext3.to_s)

    self.contents.draw_text(  0, 190, 200, 32, rog_messtext4.to_s)

    self.contents.draw_text(  0, 220, 200, 32, rog_messtext5.to_s)

    self.contents.draw_text(  0, 250, 200, 32, rog_messtext6.to_s)

    self.contents.draw_text(  0, 280, 200, 32, rog_messtext7.to_s)

    self.contents.draw_text(  0, 310, 200, 32, rog_reward1.to_s)

    self.contents.draw_text(  0, 340, 200, 32, rog_reward2.to_s)

    self.contents.draw_text(  0, 370, 200, 32, rog_reward3.to_s)

    self.contents.draw_text(  0, 400, 200, 32, rog_reward4.to_s)

    self.contents.draw_text(  0, 430, 200, 32, rog_goldreward.to_s)

    self.contents.draw_text(  0, 460, 200, 32, rog_expreward.to_s)

    # Render character background text

  end

  #---------------------------------------------------------------------------

  # * Frame Update

  #---------------------------------------------------------------------------

  def update

    super

    refresh if self.visible == true

  end

end





#==============================================================================

# ** Scene_Map

#------------------------------------------------------------------------------

#  This class performs map screen processing.

#==============================================================================



class Scene_Map

  #---------------------------------------------------------------------------

  # * Alias Listings

  #---------------------------------------------------------------------------

  alias messagegui_main main

  alias messagegui_update update

  #---------------------------------------------------------------------------

  # * Main processing

  #---------------------------------------------------------------------------

  def main

    # Draw and position the window

    @messageguiwindow = Window_MessageGui.new

    @messageguiwindow.x       = $game_variables[66]

    @messageguiwindow.y       = $game_variables[67]

    @messageguiwindow.visible = false

    # Perform the original call

    messagegui_main

    # Dispose of window

    @messageguiwindow.dispose

  end

  #---------------------------------------------------------------------------

  # * Frame Update

  #---------------------------------------------------------------------------

  def update

    # Branch system visiblity based on variable

    if $game_switches[25] == true

      @messageguiwindow.x       = 0

      @messageguiwindow.y       = 0

      @messageguiwindow.visible = true

      @messageguiwindow.update

    else

      @messageguiwindow.visible = false

      @messageguiwindow.update

    end

    # Perform the original call

    messagegui_update

  end

end