I wonder about vBulletin installation and I consider PHP and MySQL upgrade since vBulletin requires PHP 5.2+. I need some opinions... Will all scripts work after I upgrade PHP 4 to 5 as before? And will the performance stay the same? BTW is vBulletin really the best? I have some doubts when I see gfy database breaking so frequently... what about phpbb3 or SMF? That scripts are free and widely used too..
