Just below the comment box is the "Insert image" link. Click on it and choose an image to upload. Note: Flash is required. Also: The image file name should have no spaces in it.

And best to post this kind of question in the Type ID Forum (http://typophile.com/typeid) for quickest response. Otherwise your request will get lost in the Blogs.

The link for creating a new post is right at the top under the “Type ID Board” heading.

Be sure to read the Type ID FAQ and Posting Guidelines to get maximum benefit.