Same for me on Sam's 2012 mod. Scoreboards for lesser Tournaments are screwed but the major tourneys are find.
They just released a patch that will make installing mods easier than it was so his 2013 mod should be a piece of cake to install.
I can't speak on getting more players in exhibition because I never tried. I know there is a certain thing you have to do though. You might want to ask around on the Mana Games forums.