no idea, intalled then blank

I installed the latest version (ibProArcade v2.6.0) on my test site, no problems
installed to live site and the arcade.php page is void of content I guess:

as far as I can tell I followed the instructions, the arcade folders are 777, running vB 3.6.4

I really have no idea why, I've tried minor things and reinstalled ibProArcade a few times
the script seems to still be running to a point:
guests get "The administrator has disabled playing games for your usergroup." which I would expect, members get blank still

I would appreciate any advice

thanks

EDIT:
bah after much looking around it seems the problem was a old existing template called arcade, with the right template, no problems