(1) The updater tells me there's an updated version, but the version is the same one already installed. I went ahead and downloaded it manually and re-installed, just in case, but I still get the same "updated version" notification with the "updated" version.

(2) I cannot get this component to import anything. I imported the full 80M Wordpress database into my Joomla database, which is called database_main. I have tried every combination I can think of for the database prefix, including:

database_main
_main
main_

nothing works. I get a "Tables seem to be missing, Watson" error.

So I figured maybe the software meant table prefix, even though it says database prefix. I tried both the Wordpress tables and the Joomla tables, with and without the underscore, but I get the same error every time.