Thank you for this great mod

I just installed in on my forum (
www.iwsgaming.nl) and i already love it
I got one question. There are some ad dons you made, like for v3Arcade. In there i find 2 XML files. How do i add them to my forum? The same way i always do with new mod via Manage Products of do i have to do it another way?
Kind regards,
Dutch_Boy.
Edit:
Another question
Settings: General --> Show in memberlist? --> "Custom Fields" ||||| Where can i turn this on?