startx is part of package "xinit-1.2.1-i486-1"
xorgsetup is part of package "x11-skel-7.4-i486-1"
Both executables should be installed in /usr/bin.
So first check that the above-mentioned packages are installed. If so, try to reinstall them using command:
Code:
upgradepkg --reinstall xxx
xxx being your package.