Using pictures from Flickr into your Wiki
Upload the picture you want into your Flickr account.
When you click on a picture, the Flickr interface shows you some of these options. Select the “All Sizes option”
On the next page you will see this part where it displays the URL of the picture. This is the web address of the picture. Copy this address.
Go to your Wiki page. Click on Edit. In the edit box, you can paste the picture’s address. Save the wiki page and you will be able to see the picture.