"Ok, so I need to uninstall tight-vnc on a machine running Redhat 9 at work. Unfortunatly my boss didn't install it using RPM's, he downloaded it in a tarball, and I have no idea how to uninstall this software from the computer. I already tried make uninstall in the source dir. Please help."
I suggest that you use checkinstall:
Here is a thread that explains how to use checkinstall:
So what you need to do is:
1. Download and install checkinstall.
2. Use checkinstall to create a checkinstall rpm and reinstall checkinstall as a rpm package.
3. Use checkinstall to create a tight-vnc rpm package from the tight-vnc tarball.
4. Install the tight-vnc rpm package.
5. Use rpm to uninstall the tight-vnc rpm package, and tight-vnc is gone.
6. Go through all of your installed tarballs and change them to installed rpm packages.
7. Introduce your boss to checkinstall.
Be prepared. Create a LifeBoat CD.