JavaFX 2.0 saw the shift away from the JavaFX script based language towards providing the JavaFX functionality through a Java API. With the JavaFX 1.x architecture being superseded it means from the end of this year users will no longer be able to download the old JavaFX Runtime for these versions.
It's strongly recommended any applications still using JavaFX 1.x be migrated to the latest version of JavaFX. Since the release of Java 7 Update 2, the JavaFX SDK now comes with the latest Java SE JDK release.