It is not clear from your post what the problem is so please clarify.
You are attempting to register your Sony 3d blu-ray disc player bdp-bx58. How are you attempting to do that, from the player itself or from a computer? If from the player itself have you tried registering at Sony's web site from a computer?
http://esupport.sony.com/ has a Registration option at the bottom of the page.
Also at the bottom of that page is Sony's Support options, eg;
Have you tried their "Chat Now" option?
I have a 3d blu-ray disc player bdp-bx58 i tried to register following the setps but when i get to the network icon and when i use the arrow down i only have the internet browser and the activate enhance features does not show there and that is the most important part to beggin the activation process.So im stuck in there i search everything on the broser but i didnt find it