Sorry I've been a bit slow getting back to you on this -- I've been swamped by other projects.

Now I come to think about it, the best option for converting those files that have already been completed will be to use Transformer, which is designed for exactly this sort of job. I can create a replace sequence that I think will get us to where we want to be, then I can run it on the files that have already been completed. Then you can check the results -- we could actually put them into the database for that purpose, so you can read them more easily on the Web. Once we're happy the replacements are doing the job, I can run them on all the remaining files that you haven't yet worked on. In the meantime, you could be using the right markup for the one you're working on next.

Does that make sense?