Get it here.
This beta has as few fixes here and there. Really, the release is closing down at this point (hopefully). Emailing non-textual entries (such as PDFs) should work now. You can specify a translucent (or completely clear) background color for Full Screen if you want to see your desktop. There are small fixes for MobileMe HTML upload, back/forward history navigation, maintaining selection while deleting items, and configuring attachment servers. The one note that is worth mentioning by itself is the iWeb functionality: it's never worked very well due to a very limited interface made available by Apple. An interface they have chosen to remove entirely, it seems. So, for now, the corresponding functionality has been removed from MacJournal while I investigate another solution.