Not sure why you got two emails. When registering, users should get an activation email. If you clicked on "forgot password" and went through that process, then it would send a temporary password email.
The password can be change in the account page after logging in (http://kitepaint.com/#/account
Reset button is definitely something I overlooked. I'll create a ticket for it.
The reason I don't have a separate column for center panel options is because this site is not made specifically for Revolution products. The idea is that other manufacturers could sign up and be included on the site. The separate column probably wouldn't apply to any other products. I have been kind of struggling with finding a good way to make it obvious about panels that have restricted color options. My current solution was to have the notes at the bottom of the editor. I'm open to suggestions.