Rednet Remote Message Board Help

Hi i am currently trying to rig up a remote message board, i have found the sender and receiver code pasted by StevenSeegal But i cannot get it working. Theres no errors but also no messages going through.
This is the message sender code

local mdmside = "top" -- Define the side of you modem
local srvid = "2" -- Define the server ID
rednet.open(mdmside)
term.clear()
term.setCursorPos(1,1)
print("Message Board Sender")
print("Type quit to stop")
while true do
  write("Enter text: ")
  message = io.read()
  if message == "quit" then
    break
  else
    rednet.send(srv, message)

  end
end

This is the message receiver code

local monside = "back" -- Define the side of your monitor
local mdmside = "top" -- Define the side of your modem
local montextsize = 2 -- Define the size of the text on your monitor
local header = "Teleporter Listings" -- Type the header of your board
local rson = false -- true is use redstone output, false don't uses the output
local rsoutput = "right" -- Define the redstone output towards a bell of light or something (only needed when rson is set to true)
local rstime = 1 -- The time the redstone output is open
mon = peripheral.wrap(monside)
mon.setCursorBlink(false)
mon.setTextScale(montextsize)
local monwidth, monheight = mon.getSize()
local messages = {}
local num = 0
local messageBegin = 0
local messageEnd = 0
local maxMessagesOS = monheight-3
function monprint(text)
  local cX,cY = mon.getCursorPos()
  mon.write(text)
  mon.setCursorPos(1,cY+1)
end
function clearscreen()
  mon.clear()
  mon.setCursorPos(1,1)
  monprint(header)
  mon.setCursorPos(1,3)
end
function addmessage(text)
  if #messages > maxMessagesOS then
    messageBegin = (#messages - maxMessagesOS)
    messageEnd = #messages
  elseif #messages <= maxMessagesOS then
    messageEnd = #messages
  end
  clearscreen()
  for b = messageBegin, messageEnd do
    monprint(messages[b])
  end
end
function init()
  clearscreen()
  running = true
end
init()
term.clear()
term.setCursorPos(1,1)
print("Message Board SERVER")
print("Press q to quit")
rednet.open(mdmside)
while running do
  event, id, receivedmessage = os.pullEventRaw()
  if event == "rednet_message" then
    local nTime = os.time()
    messages[num] =(textutils.formatTime( nTime, false).." - "..receivedmessage)
    num = num+1
    addmessage()
    if rson then
		  rs.setOutput(rsoutput, true)
		  sleep(rstime)
		  rs.setOutput(rsoutput, false)
    end
    sleep(0.1)
  elseif event == "key" and id == 16 then
    mon.clear()
    running = false
  end
end

Believe it could be something to do with server id im not sure tho, any help would be greatly appreciated. Thank You

At the beginning of both programs, there are a few lines containing the settings. The text behind the – explains what every setting does.

While editing the programs, make sure you leave the "" where they are and you don't add any.

You get the id of a computer by typing "label" or "id" (not sure :P/>) in the console.