For them as is too lazy to read the guide above, you simply use [ img ][/ img] without the spaces....
such:
Generally, prevent those with slow connections being unable to load pages fast enough and to keep everything tidy, it is better to just post a link to the picture in question:
same pic using the [ url=<insert url (including http:// if relevant) here>]random text telling what it is[/ url] again without spaces.
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'We're all mad here. I'm mad, you're mad." [said the Cat.]
"How do you know I'm mad?" said Alice.
"You must be," said the Cat, "Or you wouldn't have come here."
- Lewis Carroll, Alice's Adventures In Wonderland