BanglaCricket forum surely turning out to be the biggest forum in Bangladesh, congrtats to the admins and the persons behind it. but I am surprised to see only 6 forums in a community of almost 1600 members, I mean come on there are surely more to talk about, why don't you create a new category naming it "Members zone" and place all the daily life stuff like gaming and all....
and why xmb? phpBB is great and if you are concerned about security you could use IPB or vBulletin is works good too. but so what you have done