As always thanks to anyone for their help in advance. Here's the scenario and the question.
Lets say that I run a business called Jim Bobs small business Word Press hosting where I am running Word Press in MU providing websites to small business in my community for a very low cost.
And lets say that the local plumber comes by, creates a site and maps the 3rd level site to a TLD and starts blogging about how to sweat two copper pipes together. Now lets say that someone comes by and wants to comment on the post but in order to do so must be a registered user. So here's the question.
When a visitor wants to register to comment on a 3rd level site mapped to my customers TLD is there a way to create a custom registration page reflecting the colors/logo etc of the 3rd level domain rather then the original TLD? I'm thinking that this likely isn't possible but before I closed the book on this question wanted to see what the experts can provide in the way of guidance.