Glad you've managed to get something to work. The spaces were not an issue for me (they were in Moth3r's original script and I left them in the DVD RB filter editor). I can't think why the font filename makes a difference either but hey, if it's working...
I have the PAL discs. I encoded the movie using the Showframenumber() filter, synched this up to a capture of a PAL VHS copy of Star Wars in After Effects and noted the appropriate frame numbers from there. These numbers worked perfectly for me.
G