iPhone upgrade from 1.1.3 to 1.1.4

I've finally upgraded from 1.1.3 to 1.1.4. Completed within 5 minutes...

How did I do it?

Preparation

• Sync iPhone with iTunes
• Download iPhone firmware 1.1.4, iPlus 2.0b and International_payload. Save all to desktop
• Unzip iPlus 2.0b to desktop
  
• Rename International_payload.zip to payload.zip
• Copy to iPlus2.0 folder on desktop. Click OK to replace
  

Upgrade

• After completely syncing iPhone with iTunes
• Place iPhone into DFU mode
  Easiest way:- One of the easiest way is to turn off iPhone first. Press and hold the home button and plug the USB cable in. Once you see the Apple logo, release the home button and iPhone will be on below screen.
  
  
• Press shift and click on restore. A file browser window will open. Select the firmware 1.1.4 file saved on desktop and click Open
• Once completed upgrade to firmware 1.1.4, iTunes will show below screen
  
• Exit iTunes.
  *Please remember to check if iTunesHelper is not active in Windows Task Manager. If it is, please end the iTunesHelper.exe process
  

Start

• In WinXP, go to DOS prompt (click on Start> Run> type in "cmd"> click on OK button)
• Type in "cd desktop/iplus2.0", press enter
• On the next prompt, type in "iplus -u" and press enter. You will see the below screen
  
• After completion, your iPhone will reboot and you are completely done.

Big thanks for iPlus creator Aviegas