The script that Steam Card uses is online was online before they launched it! I don't know where it is or which one is best to use but I am sure anyone could incorporate it into this mod if they knew how!
I found this forum where someone put two standalone xml query code's together to grab player info
http://www.clanao.com/vbulletin/show...ture-generator
I am sure someone here could modify it to work with the gamecard that way everyone's vbulletin won't have to rely on steamcard staying online to show rank...
There is more information online when you google: Steam Signature Generator