Center pop-up over the logo

Pop ups are never really a wise choice. An option for a pop-up is though.

See… many web viewers despise pop-ups, automatically closing them out as soon as they come up. And with the popularity of pop-up blockers growing every day, more and more people aren’t even able to view sites that are contained in a pop-up without disabling the pop-up blocker. This is a pain for them, so they usually just avoid it and don’t come back to the site. Or they just think your site has a false/dead link because they never even get to see the pop-up.