Follow the link you posted, then right click on the image and click on "Properties". Next, copy the image location (the first line on the box).
Go back to the Tsikot web page and click on "Post Reply" and you get the message box. At the top, you'll notice an icon which looks like two mountains with a moon on top which says "insert link", click on that icon and you get a box with "http:\\" already typed. Click on "Ctrl V" on you keyboard to past the image's locations we copied earlier, then click on "okay". That's it, the pics should now be visible. Oh, and try to resize your images to 640 x 480 so they can load faster in this site.