localhost/wordpress won't connect

I have done a lot in order to get a localhost/wordpress working. I installed WAMP successfully. I successfully imported my database. I added the prefix to the table names in wp-config.php. And I installed a premium theme. The premium theme was just showing generic stuff, not my site. So I ftp'd the 3 wp-* folders from my ISP down to my local folders, transferring almost 6,000 files.

Now I when I invoke localhost/wordpress, I just get a white browser page. Chrome's message is that the URL refuses to connect.

Any ideas?