OK, Here's the script with some subs through Fillmore Act 2.
http://lua.pastey.net/126262
Nothing in there so far is final. It's just a very rough draft.
Make sure that you're using a recent svn version of SNES9x 1.51. You can go to the
snes9x-rr downloads page and get either the r51 binary or the latest binary (r70 as of the time I typed this). If you don't use a sufficiently recent version the font will be too large.
I don't know if you'll want to add subs, Dunnius, but in case you do:
To add subs, go to the section with all the lines beginning with "S(". After the "S(", there are three comma-separated numbers to put in: first is the frame to start displaying the message, second is the Y position to start drawing the message, and third is the number of frames to display the message. Then type in three comma-separated strings, each in one set of quotes. Each string represents one line. If you don't want to display anything on a line, just don't put anything between the quotes. Don't forget to add a closing ")" after all of that. You'll probably have to mess around with how much text to put on each line since if a line is too long it just cuts off text instead of wrapping it. Make sure to have the text in the order that it'll appear in-game.
I suggest you set hotkeys for reloading lua scripts. Go to Config->Hotkeys then select "Tools" from the drop-down list. You should be able to set the hotkey from there.
Then when you want to mess around with a sub, make a savestate before the part where the sub actually occurs. If you want to try it again after making changes, reload the savestate
and reload the script using whatever hotkey you set for that, otherwise the script might not work right.