Arrgh! I've lost my printer drivers!

I took my Mac in to be de-partitioned (didn’t need the Windows option), and now I’ve lost all my printer drivers!

I’ve got two printers: an old Brother MFC, and a Kodak EasyPrint. Both were working fine.

When I got it back, there’s no printer drivers showing in the Printer/Fax utlity under System Preferentces. I’ve downloaded the drivers from Brother and Kodak a couple of times, gone through the Install process, powered down, and still no drivers show up on the Printer/Fax utility (when I click on the +, nothing comes up).

Anyone have any idea what could have happened to them?

Thanks.