Just installed it myself again, and it works fine.
http://www.mgarcade.com/forum/index.php?
I'll leave the announcement up there for a while so people can check it out
It seems your 'Latest News' mod you have installed is trying to share a table with the Global Announcement mod =\
If you'd like I could take a look at your template via your AdminCP. I've PM'd you my msn, if your interested in me taking a look