Sorry Lion,
The only way I see it working is by either linking to the image you found by using the current host location ...
... or continue to do what you've been doing by uploading the 'snagged' image on a web-host, and linking to it from there.
Either way will work. But unfortunately you can't just right-click and copy an image and paste it right in FreeRepublic.
That's what I have been doing for years! Uploading to a remote location then inserting the image into FR. But the way more in here are making it sound, all you have to do is capture and/or save the image to your hard drive and then you can insert it in a post. That's why I wanted to know the magic action!
Thanks, Buell!