Here's the xorg.conf file. It seems to have NO settings available for a "widescreen" TV/Monitor?

If someone can suggest settings I'll have a go at hacking it.
# File generated by XFdrake (rev )
# **********************************************************************
# Refer to the xorg.conf man page for details about the format of
# this file.
# **********************************************************************
Section "ServerFlags"
Option "DontZap" "False" # disable <Ctrl><Alt><BS> (server abort)
#DontZoom # disable <Ctrl><Alt><KP_+>/<KP_-> (resolution switching)
AllowMouseOpenFail # allows the server to start up even if the mouse does not work
EndSection
Section "Module"
Disable "dri"
Load "dbe" # Double-Buffering Extension
Load "v4l" # Video for Linux
Load "extmod"
Load "glx" # 3D layer
EndSection
Section "Monitor"
Identifier "monitor1"
VendorName "Generic"
ModelName "1024x768 @ 60 Hz"
HorizSync 31.5-48.0
VertRefresh 50.0-70.0
# TV fullscreen mode or DVD fullscreen output.
# 768x576 @ 79 Hz, 50 kHz hsync
ModeLine "768x576" 50.00 768 832 846 1000 576 590 595 630
# 768x576 @ 100 Hz, 61.6 kHz hsync
ModeLine "768x576" 63.07 768 800 960 1024 576 578 590 616
EndSection
Section "Device"
Identifier "device1"
VendorName "nVidia Corporation"
BoardName "NVIDIA GeForce 6100 and later"
Driver "nvidia"
Option "DPMS" "false"
Option "DynamicTwinView" "false"
Option "AddARGBGLXVisuals"
EndSection
Section "Screen"
Identifier "screen1"
Device "device1"
Monitor "monitor1"
DefaultColorDepth 24
Subsection "Display"
Depth 8
Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
EndSubsection
Subsection "Display"
Depth 15
Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
EndSubsection
Subsection "Display"
Depth 16
Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
EndSubsection
Subsection "Display"
Depth 24
Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
EndSubsection
EndSection
Section "ServerLayout"
Identifier "layout1"
Screen "screen1"
EndSection