tarponteaser,
You tried to use the address for the Picasa *page* with the IMG tag rather than the picture's actual address. To get the address of the picture, right-click and select "Copy Image Location" if you're using Firefox. If you're using IE, you need to right-click, select "Properties", then highlight the contents of the Address (URL) section of the dialog box, the right-click again, and select "Copy".
Now the URL of the actual image should be in your clipboard, and you can paste it into the IMG tag (or into the dialog box if you're using the "Insert Image" feature of the editor.
As an example, here is the URL of the Picasa webpage:
Code:
http://picasaweb.google.com/tarponteaser/F250/photo#5207471246800053538
This is the actual address of the picture hosted on that page:
Code:
http://lh6.ggpht.com/tarponteaser/SESngjOT5SI/AAAAAAAAAQA/uNl9GgAKnYQ/IMG_1285.JPG?imgmax=800
And the correct [IMG] tag syntax:
Code:
[IMG]http://lh6.ggpht.com/tarponteaser/SESngjOT5SI/AAAAAAAAAQA/uNl9GgAKnYQ/IMG_1285.JPG?imgmax=800[/IMG]
This thread should be helpful, too:
Picture Posting 101
Tort