I can barely understand your question.
Launcher is file MBIILauncher.exe, it supposed to be in "Jedi Academy\GameData" folder.
If you don't have it (it was deleted by anti-virus, or you didn't download it all), download it by this link:
http://www.moviebattles.org/download/MBIILauncher.exe
No, Launcher don't have built-in server browser.
You start Movie Battles using Launcher, then you click Play => Join, and you see server list.