Come on man! You asked for help and then you end up being sarcastic!?
The linked thread contains a lot of information how to insert a photo. In spite of gentle prodding, you have yet to post what exactly YOUR problem is and what steps YOU are taking, so that we can help you.
As for the "non-existing" solution, here is what the admin said about OP problem in that thread: "I removed the file attachment that was breaking things. It was labelled as a jpg file (by the .jpg extension), but it seems that it was not a valid jpg file..."
Then again, the solution above might be meaningless for you, if your problem is not exactly the same.
So, please, if you want help, post YOUR steps and describe YOUR problem.
EDIT: For size limits, check this thread: http://www.luminous-landscape.com/forum/index.php?topic=67918.0