PSOBB does not work on Sylverant enough to actually do anything useful. Its not that its buggy, its just that the code isn't written in the server. You can walk around the lobby, you can talk to other players (on all versions of the game), simple mail works, as do guildcards, and you can create a game. However, you cannot join other people's games (the leader will freeze at the moment), and enemy data isn't actually loaded by the server, so you'll never get experience or anything else like that. Also, shops aren't fully implemented, so they won't work. In addition, there are a lot of things that the server will disconnect you if you do (for instance, anything regarding teams or quests).
Simply put, don't expect much out of Blue Burst, even if you were to be able to get on. Also, I'm not giving away any details at the moment of which installation of Blue Burst you'd need to use or anything else like that (nor any links). There's simply no reason for it, with how little support there is on the server for Blue Burst.