During the setup procedure,u r asked to show ur Serial-Num which should be get by the registeation in Daz3d.com. but why can't I do it? I mean I even cant open the registration page.

Just go here: http://www.daz3d.com/ and click on "Create Account" in the top right corner.

Once you've registered the serial will be under "My Account"->"Available Serial Codes"

That is the real matter.
I cant open the "New Account" page.Is that because my location?I've got no idea.

If possible, Would u please send a Serial-Num to me?