This is the most recent photo I found on the flickr page linked in your signature.

From flickr, you just go to the share button to upload photos here. From the share button, head over to the BBCode tab,copy the code and paste it in to your post. As for how to do that on an iPad, I would imagine it would be similar on the Flickr app, though I do not own an apple device, thus can't give you instructions for that specific device.