Dakkodango Translations

I'm referring to this game:

http://www.getchu.com/soft.phtml?id=661153

Does anyone here know what it's about and how it figures into the game series' timeline?

http://vndb.org/v2353

Pretty much tells you the relation between them basically. I do gotta admit I wish I could play all the games related to the eien no aselia world. It's such a good series.