All the GR's are available on the diadora website. They have Hypercats and gs sizes for all. http://eshop.diadora.it/eshop/product/Diadora-Shoes-N9000-NYL.html/1/pid/103765/frmCatID/38021/
Maybe. I would suggest making sure you are logged in and trying one more time. They log you out pretty quick. If that doesn't work there's pretty much nothing else.