Is it possible to combine the register controls within the add topic page/form?
my client wants to be able to register while adding a topic. Is it possible to do it without massive modifications to code?
I have no clue.
This requirs lots of custom development and template file customization.
I think the easiest thing you can do is to make the registration process one click. That just means integrating a social login plug-in with WpForo and so if you have this, they can click to register with facebook, etc. and then they'll be set to post. I did this on my site at http://ontheten.org/community and it works beautifully using the AccessPress Social Login Lite plug-in. Of course you can select a different plugin to accomplish this, but the one I used (by AccessPress) was very easy to configure. It just gives the three main social media sites, facebook, twitter and google+.
Hope it helps you. Regards, Ed Sanders