Here are a set of screenshots to authorize Terminals with Flickr and how to post the images.
In Terminals Click 'Tools' -> 'Options' -> 'Flickr"
Click on second 'Next' button as you are requesting this directly from Terminals.
Click 'OK, Ill Authorize It'
That is the Flickr part done.
Now click 'Complete' in Terminals.
'User authenticated successfully' should be displayed.
Click the 'Camera' icon to 'Capture Terminal Screen' of the Window/Tab
The 'Screen Capture Manager' tab should open in Terminals.
Select the images you want uploaded to Flickr and and 'Right-Click' to Post the images to Flickr.
Images are now queued and now uploading to Flickr
Confirmation dialogue that images have finished uploading.
The final image/s uploaded and displayed on Flickr.