I created a WP site on a subdomain that I own with the expectation that I could redirect my clients domain to my subdomain folder to serve up the WP site "on" his domain. The site included a password protected page. Once I was finished with the site I redirected the DNS servers of my clients domain to use to the folder I built the site in, then I changed the "Site Address (URL)" in the general settings of WP to the domain I am wanting to use. Everything on the site works just fine except that when I go to the password protected page and enter in the password instead of loading the page that is protected it just seems to ignore that I put in a password and redirects to the same page (as if I need to enter the password again).
I found this page: http://codex.wordpress.org/Giving_WordPress_Its_Own_Directory and followed the instructions under "Using a pre-existing subdirectory install", but the problem is that I can't follow step 4:
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Copy (NOT MOVE!) the index.php and .htaccess files from the WordPress directory into the root directory of your site (Blog address).
If I put the files in my root directory it messes up the other WP sites I have on other subdomains.
ANy help?