php and .htaccess tweaks for new site

We have 2 issues with a new site: 1) Our .htaccess file needs to resolve [login to view URL] to [login to view URL], and we need proper canonical redirects so all requests to the home page ([login to view URL], [login to view URL]) go to www.example.com. 2) Our header nav is dynamic, so it does not show a link to the page the user is reading. On one page, this isn't working. We need you to fix that. This should be very quick if you understand .htaccess and .php. Please request the URL and I'll show you the site that's having these problems.