The buttons above create the tags that allow you to embed images, but you have to supply the URL for the images. And to get that URL, you have to put the image someplace on the internet, like Julio says.
The basic template for an image is:
{img}URL for the image here{/img}
where the { } is instead replaced by [ ] in each case, which the button (a little painting) above will do automatically. You just paste the URL into the middle.
To make sure everything worked, you can do a preview by clicking the button below. Then if it looks right, you can post it. Or you can correct it and check again.
Jorn, Are you referring to buttons on the NFF page, or P'bkt/Flkr? I do my image posting in a similar way, but on Flkr I have to manually hilite the URL, then cut & paste. I don'e see any upper buttons on NFF. Is there a simpler way? P'bkt is automatic, push and play. What am I missing? PC, XP, btw.
Gerry