The nautilus toolbar icons follow the stock ones provided by the gtk theme. I don't think Bluecurve installs any stock icons, so that's why you see the default ones.Is it possible to theme the nautilus toolbar? I've noticed that the home button is always the stock gnome home icon. Since I have the bluecurve theme my home folder is different then nautilus home button. Also, the Go menu has no icons for Start Here and Trash. At the very least they should have stock gnome icons. my 2 cents...