How to remove someone from a picture?

[Blighty]

You should have 10 files in the plug-ins folder of your gimp profile.
plugin-heal-selection.py
plugin-heal-transparency.py
plugin-map-style.py
plugin-render-texture.py
plugin-resynth-enlarge.py
plugin-resynth-fill-pattern.py
plugin-resynth-sharpen.py
plugin-uncrop.py
resynthesizer-gui.exe
resynthesizer.exe
Are they all there?

For Windows, your gimp profile is something like:
C:/Users/YourName/.gimp-2.8/plug-ins