A new version of Real Subtitler (0.7.3) has just been released. For details on bugfixes see the program release notes.
This version contains the long awaited help system and a few bugfixes (see the release notes and changelog for more info).
This program creates subtitles for RealVideo (*.rm) files. Its beta version is ready for download at http://www.sourceforge.net/projects/realsubtitler