Here's some follow up. When your done, email us and Ali can check that
no minor details were missed.

When changing your "failed login" page to a sales page, remember that page
will be shown to your paying members when they typo their password or don't
remember it or whatever. It's a very good idea to tell the user on that page
"your log in details could not be verified" rather than just redirecting them
to some random sales pitch when they log in. Also we suggest a customer service link on that page. You might have some tour / sales stuff for people
who just randomly type in some user name and password even though they
haven't joined, or for customers who are expired, but 99% of the people who
type in a user name and password are paying customers trying to log in so
just sending them to a typical tour page with no hint of what's wrong or
what to do about it doesn't make a lot of sense. Consider if your bank or
affiliate program did that - you go to log in to your bank account and get sent
to some sales pitch for mortgage refinance. That would be a bit disconcerting,
I'd think, unless the page also clearly said something like "Your user name
and password were not entered correctly. Click here to try again or here to
contact customer service."