To post images from your Flickr account, all you do is:
- Click the "Share" tab above the image.
- Select "Grab the HTML/BBCode" at the bottom of the little window that pops up.
- Choose the "BBCode" option (once again at the bottom) and also the size of the photo you want in the pull down box just above that.
- Once you have done that, just follow the instruction and "Copy and paste the code" shown in the main window into your post.
- Bingo, you're done!