The site no more exists and so no more flair generation. I found se-flair useful:
See http://se-flair.appspot.com/ for more complete instructions. Short version:
http://se-flair.appspot.com/[account-id].html
produces an HTML document suitable for iframe-embeddinghttp://se-flair.appspot.com/[account-id].js
produces JavaScript code that inserts the stylesheet link into the document head and writes the flairdiv
into the documenthttp://se-flair.appspot.com/[account-id].png
produces a PNG image of the flairNote that your account-id is the numeric ID in the URL for your profile on the main stackexchange.com website.