Once you have put them on a webserver somewhere, make a note of the url (eg http://www.site.com/image.jpg) and create/find the topic u want to post a pic on.
Where you want the image to appear, click the 'insert picture' button (a picture of mountains and a sun with an arrow) which will add two 'img' tags (in square brackets) to your post.
IN BETWEEN these, add the FULL url to your image (include http://) so it will look something like this (replace ( and ) with the square equivilant)
(img)http://www.somewhere.com/image.jpg(/img)
This will then load it into your post automatically when the topic is viewed.
This can also be used for signatures , normal posts etc....
if you cant find webspace try using:
http://imagehost.5gigs.com/ or
http://www.imageshack.us/
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