If a few utilities did not install, that should leave you wondering what else did not install. Did you let the installer complete, or did it quit with a typical message (like 'The installer encountered an error. Please install again', or something similar)?
Did you do an Archive and Install option? If so, everything should have reinstalled. You shouldn't have to discover all the bits that the installer somehow missed. Try the install again, and choose the Archive and Install option this time, to assure that you have a complete install.
How much free space is available on your hard drive?