Problem previewing website after changed url

I changed the url back to this: http://wpbphysicaltherapycenter.com/HealthManagementTips so I can preview the blogs but it doesn’t solve the main problem..trying to change the url to http://wpbphysicaltherapycenter.com/ . Also, WordPress is in its own directory or sub-folder, “HealthManagementTips”.

I followed all the instructions in “Changing the Site URL” but could not find a .htaccess file. (I think that’s becuase we’re hosted on Yahoo and they don’t have them. I remember this from long ago.) I changed the index.php file like directed on the root directory. Still didn’t work. Any other ideas? I’d like to avoid launching the site with that long url.

That’s what I’m referring to as the folder, HealthManagementTips.

Ok. I think we’re missing each other. I went through all those steps except .htaccess for the reason explained above.
Wordpress has it’s own directory:
http://www.wpbphysicaltherapycenter.com/HealthManagementTips

The root directory is http://www.wpbphysicaltherapycenter.com

The file underneath that is HealthManagement Tips where the WordPress files are. I’m assuming that’s what is called the subdirectory or WordPress directory.

I coped the index.php and put it on the root directory: http://www.wpbphysicaltherapycenter.com and added HealthManagmentTips as directed from that link.

/** Loads the WordPress Environment and Template */
require(‘./HealthManagementTips/wp-blog-header.php’);