"Cached" and "indexed" are two different things. You can be indexed without being cached. Most search engines, including Google, allow for a webmaster to elect to not have their content archived (cached)for very legitimate reason. That is the purpose of the "no archive" tag.

The page you're so worried about is practically identical to your home page (which is indexed), so it is probably being filtered out of the search engine returns as duplicate content.

So I saw that advanced access lets me set up a 301 redirect via their site. When I forward from my hosting company, do I just check the box for "redirect URL forwarding" instead of masked then?