You do need to have a URL for each image, but it’s dead easy…
Just sign up to any image hosting site (such as Photobucket, Flickr, Dropbox etc…) and upload your pictures. Once you have your pictures hosted on line, they each have their own URL (web address) which you can then link to in your posts here.
All you’ve got to do then is click on the "insert image" button when creating your forum post and paste in the direct link (URL) of the hosted image you want to display.
See also:
http://www.xt660.com/showthread.php?t=10389
http://www.xt660.com/showthread.php?t=10380
If you become an supporting member, which costs a measly �10, you can upload attachments (images) direct from you PC and then add the attachments to your posts. There are loads of other benefits from becoming a supporter too. Click on the links in my signature to find out more.