I officially have ZERO idea what's going on with my changeover here. I've forgotten which version of b2e I had running, but when running this script on the most recent version of WordPress (in the b2e's old directory, '/blog') I hit submit on the first page and am routed to my site's index page. Not only that, but it takes me to the index.php, not index.html which has frames. When I delete my index from the site I get a server 500 error, but still no matter what I try I cannot get past that index! Where on earth is the submit sending me to?
EDIT: Waitaminute... import-b2evolution-wp2.php has an error on line 193. Surely it should read
"<form method="post" action="import-b2evolution-wp2.php?step=1">"?
Could that be why I'm being fed errors? Unfortunately, the faffing so far has crashed my web server so I'm not in a position to test it yet.
EDIT 2: Freaking YES, it worked. I actually debugged something, which is a first! So, um, yeah, if anyone gets a similar problem, that's why. I reckon my transfer to my site's index must have been because the 404 direct's playing up.