If you copied the whole code properly and you are still getting an error message, I think you should post in
TryNinja's thread and ask for help from him. I thought that by tagging him, he would see it and come here and say something. He mentions in his thread to make a post if any error messages occur.
There are two contradictive instructions on his OP - it could be where I'm getting it wrong.
1.
3. Go to bitcointalk.org (any page).
2.
Run it on any topic and all images posted by you will be updated
Am I supposed to run my Ctrl + Shift + F12 on
any of my topics that needed fix or any page on the forum ( I ran the last one on this thread)