I had the same problem everyone else reported until I changed the blogger.php line, as directed by Andy.
I get further along – into the WordPress Blogger Blog Import screen….but there I have problems. All 3 of my Blogger Blogs appear there in the list with the “magic button” to import….but they all have 0 posts listed and when I run the import, nothing is imported.
WordPress lists each Blog at my site root, when they are actually in their own subdirectories. My guess is that WordPress is having problems “finding” the posts.
Is there any way to edit a file to direct the importer to the appropriate server folder that holds the posts?