I believe you just need to put the seen file in your tomoyo after folder, that's how it was with Clannad.
As for the translation project, it's still going on.
The translation for the partial patch is almost complete. So, I'll be organizing a mass quality checking over the winter break (Starting Dec 22nd, that's when my exams end), and hopefully the partial patch will be released before Jan 10th, 2011. If you are good at English and wishes to help us proofread, please contact me via Talk pages. --karmainall 16:28, 11 December 2010 (UTC)Karmainall