The go tool is probably the best method of installing goncurses.
go get "github.com/rthornton128/goncurses"
Alternatively you could use mercurial to install goncurses.
Goncurses is, strictly speaking, an ncurses library. Ncurses is not available on Windows without using either a VM running an OS with ncurses or Cygwin. Instead, Goncurses uses PDCurses which is not 100% compatible with ncurses. As a result,
No functions which operate only on stdscr have been implemented because it makes little sense to do so in a Go implementation. Stdscr is treated the same as any other window.
Whenever possible, versions of ncurses functions which could potentially have a buffer overflow, like the getstr() family of functions, have not been implemented. Instead, only the mvwgetnstr() and wgetnstr() are used.