Another news story about it from the ARRL.
http://www.arrl.org/news/balloons-carrying-amateur-radio-payloads-still-circling-earth
And another from AMSAT UK.
http://amsat-uk.org/2014/10/04/silverstone-b-64-balloon-still-flying/
Web page with more details about the balloon.
http://leobodnar.com/balloons/B-64/index.html
You can also track it here.
http://aprs.fi/#!call=a%2FM0XER-4&timerange=3600&tail=3600
Another tracking website.
http://habitat.habhub.org/mobile-tracker/?focus=B-64