For a clickable link:
[UR L="http://tinypic.com/m/k2ehk7/1"][IM G]http://i68.tinypic.com/jskmqw.jpg[/IMG][/URL]
without the spaces.
Tinypic has a box called "grab your code" on your page:
http://tinypic.com/usermedia.php?uo=...%2BYh4l5k2TGxc
The URL is from "URL for E-Mail & IM" to the left of the image.
The image link is from "IMG Code for Forums & Message Boards".
For a non-clickable image, you can just use the premade "IMG Code for Forums & Message Boards".