Trouble w/ install.php and config.php on Bluehost

I have signed up on Bluehost for a currently up and running blog which is on wordpress.com.

I am in the process of moving to wordpress.org. Downloaded WordPress to the server. Have followed all the instructions, read all the documentation, read this forum, but am still having difficulty with just getting to step 2: getting install.php to run correctly so I can login to the admin.

I need everything in bluehost to point to my temporary URL (69.89.31.161), rather than my active blog until I’ve imported my old posts…

First, wp-config.php is set up as:
define(‘DB_NAME’, ‘fitsnews_wrdp1’); // The name of the database
define(‘DB_USER’, ‘fitsnews_wrdp1’); // Your MySQL username
define(‘DB_PASSWORD’, ‘*********automatically set I guess not the password I chose for WordPress’); // …and password
define(‘DB_HOST’, ‘localhost’); // 99% chance you won’t need to change this value
define(‘DB_CHARSET’, ‘utf8’);
define(‘DB_COLLATE’, ”);

WordPress user name: nmjackson
Wordpress password: is different than what’s listed in the wp-config.php file.
dB: fitsnews_wrdp1
dB username: fitsnews_wrdp1
Wordpress downloaded to bluehost to a folder called: wp

I went to phpMYAdmin to point the siteURL to the temporary URL (from myblog.com/wp to 69.89.31.161/nmjackson/wp). But when I cut and paste “http://69.89.31.161/wp/wp-admin/install.php” into my browser I get a “HTTP 404 error, Page cannot be found” error…I’ve tried everything I can think of, spent hours on this…I’m sure it’s a simple thing. What am I doing wrong?

PLEASE HELP!!!