Also the same problem here using WP2.0, clean install.
Enter Blogger login details, hit enter and wait ~20 seconds before the browser times out. No message given with FF or IE, Opera gives the following:
“Connection closed by remote server
You tried to access the address https://www.domain.com/wordp/wp-admin/admin.php?import=blogger&noheader=true&step=0, which is currently unavailable. Please make sure that the Web address (URL) is correctly spelled and punctuated, then try reloading the page.”
Suggestions?! ??