I had the exact problem. What I did was to edit wp-install.php to see where the script died. And I found out that it died on the line that attempts to mail the login details of your newly created WP weblog. Commenting the line I mentioned (the one that calls the mail() function — it’s line 181 on WordPress 1.5) by prefix-ing it with “#” (without the quotes) worked for me.
bug
