[Zope] external databases

Hi again, I've a Postgress database with some data I want to use with Zope. So I've to install an external driver. Is it so that I've to recompile Zope? This means that I've to download the source and not the binaries of Zope, like I did... Isn't there a simpler way? Because when I need to recompile, I've do download also all the correct libraries of each program... sghh. Please, let there be a simpler method. Thanks in advance. Tom.