in the current Gimp 2.8.14
the menus are a bit different than in 2.4 and 2.6

a lot has changed in the last 5 years

but it is there and works

select the path tool
make a test roundish path ( 6 or 7 clicks will do )
then on the top menu click "window" and select " docable dialogs" and select "path"

on the bottom of that window is the script

it dose work in my Gimp install on OpenSUSE linux
( a source build from the current stable branch)

mind you i did NOT expect this to work after 5 years , but it dose