http://www.atariage.com/forums/topic/176401-next-version-of-bb/page__st__250
If you want the bleeding edge latest batari basic, the last few pages of this thread helped me out.
However, as of last night visualbb was removed and redownloaded ver (562), and would crash on launch, even after logouts and reboots, but today it runs just fine. Windows (7) will NEVER make sense to me.
Until an installer is created, or things are put in one place, it will be confusing.
I hope others respond.
BTW my Emvironment variable bB is shorter than yours shows. Something like C:\AtariVCS\bB\batari2600.exe BUT my Environment variable Path is HUGE like yours, going into imagicMagic program in program files then windows, win32, etc., on and on, nonsense!