Timestamp Plugin trouble

<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE muclient>

<!--
Change the following variables to customise your timestamps:

TIMESTAMP_INPUT  : what to put in front of things you type
TIMESTAMP_OUTPUT : what to put in front of MUD output
TIMESTAMP_NOTES  : what to put in front of scripted notes

Text colours:

TIMESTAMP_INPUT_TEXT_COLOUR
TIMESTAMP_OUTPUT_TEXT_COLOUR
TIMESTAMP_NOTES_TEXT_COLOUR

Background (behind the timestamp) colours:

TIMESTAMP_INPUT_BACK_COLOUR
TIMESTAMP_OUTPUT_BACK_COLOUR
TIMESTAMP_NOTES_BACK_COLOUR

Special characters for date/time etc.

General
-------

%E - MUSHclient initial (startup) directory
%F - world files directory
%L - log files directory
%N - world name
%P - player name

Date/time
---------

%a - Abbreviated weekday name
%A - Full weekday name
%b - Abbreviated month name
%B - Full month name
%c - Date and time representation appropriate for locale
%d - Day of month as decimal number (01 - 31)
%H - Hour in 24-hour format (00 - 23)

%I - Hour in 12-hour format (01 - 12)
%j - Day of year as decimal number (001 - 366)
%m - Month as decimal number (01 - 12)
%M - Minute as decimal number (00 - 59)
%p - A.M./P.M. indicator for 12-hour clock
%S - Second as decimal number (00 - 59)
%U - Week of year as decimal number, with Sunday as first day of week (00 - 53)
%w - Weekday as decimal number (0 - 6; Sunday is 0)
%W - Week of year as decimal number, with Monday as first day of week (00 - 53)
%x - Date representation for current locale
%X - Time representation for current locale
%y - Year without century, as decimal number (00 - 99)
%Y - Year with century, as decimal number
%z, %Z  - Time-zone name or abbreviation; no characters if time zone is unknown
%% - Percent sign

%e - Elapsed time in microseconds since world started
%D - Delta time, in microseconds, since previous line

-->

<muclient>
<plugin
   name="Timestamps"
   author="Nick Gammon"
   id="559d05b18c3fd5602a433cf8"
   language="Lua"
   purpose="Adds a timestamp to each line in the output window"
   save_state="y"
   date_written="2010-09-25 14:02:11"
   requires="4.62"
   version="1.0"
   >
<description trim="y">
<![CDATA[
Enable this plugin to see timestamps.

Disable to hide them.
]]>
</description>

</plugin>


<!--  Script  -->


<script>
<![CDATA[

TIMESTAMP_INPUT   = "%H:%M:%S $ "
TIMESTAMP_OUTPUT  = "%H:%M:%S > "
TIMESTAMP_NOTES   = "%H:%M:%S ! "

TIMESTAMP_INPUT_TEXT_COLOUR   = ColourNameToRGB ("maroon")
TIMESTAMP_OUTPUT_TEXT_COLOUR  = ColourNameToRGB ("white")
TIMESTAMP_NOTES_TEXT_COLOUR   = ColourNameToRGB ("cyan")

TIMESTAMP_INPUT_BACK_COLOUR   = ColourNameToRGB ("#151515")
TIMESTAMP_OUTPUT_BACK_COLOUR  = ColourNameToRGB ("#151515")
TIMESTAMP_NOTES_BACK_COLOUR   = ColourNameToRGB ("#151515")

function OnPluginInstall ()

  -- if disabled last time, stay disabled
  if GetVariable ("enabled") == "false" then
    ColourNote ("yellow", "", "Warning: Plugin " .. GetPluginName ().. " is currently disabled.")
    check (EnablePlugin(GetPluginID (), false))
    return
  end -- they didn't enable us last time
 
  OnPluginEnable ()
  
end -- OnPluginInstall

function OnPluginSaveState ()
  SetVariable ("enabled", tostring (GetPluginInfo (GetPluginID (), 17)))
end -- OnPluginSaveState

function OnPluginDisable ()

  SetAlphaOption ("timestamp_input",  "")
  SetAlphaOption ("timestamp_output", "")
  SetAlphaOption ("timestamp_notes",  "")
  Redraw ()
  
end -- OnPluginDisable

function OnPluginEnable ()
 
  SetAlphaOption ("timestamp_input",  TIMESTAMP_INPUT)
  SetAlphaOption ("timestamp_output", TIMESTAMP_OUTPUT)
  SetAlphaOption ("timestamp_notes",  TIMESTAMP_NOTES)
  
  SetOption ("timestamp_input_text_colour",   TIMESTAMP_INPUT_TEXT_COLOUR )
  SetOption ("timestamp_output_text_colour",  TIMESTAMP_OUTPUT_TEXT_COLOUR )
  SetOption ("timestamp_notes_text_colour",   TIMESTAMP_NOTES_TEXT_COLOUR )

  SetOption ("timestamp_input_back_colour",   TIMESTAMP_INPUT_BACK_COLOUR )
  SetOption ("timestamp_output_back_colour",  TIMESTAMP_OUTPUT_BACK_COLOUR )
  SetOption ("timestamp_notes_back_colour",   TIMESTAMP_NOTES_BACK_COLOUR )

  Redraw ()
  
end -- OnPluginEnable


]]>
</script>


</muclient>

General
-------