Download the package from the sourceforge mirrors:
These packages were built from the spec file at Spec Files Extra (SFE).
To install the package:
gunzip -c SFEgnome-subtitles-root.tar.gz | tar -xf -
gunzip -c SFEgnome-subtitles.tar.gz | tar -xf -
pkgadd -d . SFEgnome-subtitles-root SFEgnome-subtitles
Use the icon in the Gnome Menu or run it from a terminal with:
gnome-subtitles