Whether it's by changing the mod-rewrite or .htaccess, how would I change the URL for parent/child urls.
For example:
Change all URLs from:
http://www.yoursite.com/parent/child.php
http://www.yoursite.com/parent/parentchild/child.php
to
http://www.yoursite.com/child.php
In otherwords, make all URLs look like they are in the home directory.
We have a static website that we want to convert to WordPress. All php pages are in the home directory. If we move everything to WordPress the URL directory structure will change. This will kill all SEO work done on these pages.