I notice Dave you are using Standard Editor in your profile, if you change to Enhanced Editor it will assist in posting pics as it displays the pic icon the best way to post them.
Click on User Control Panel (left hand side of the page under Main Menu)
Look under Settings and Options
Click on Edit Options
Scroll down to the bottom of the page to Miscellaneous Options
Change the edit window in the box to WYSIWYG (what you see is what you get).
Save the Changes.
There are various ways of posting pics, both thumbnails and larger size. I normally host them on PhotoBucket which is a free hosting site and then paste the link from that site to the edit window in this site. Or you can create your own photo-album in this site.
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Ride on !
