you need to acquire lame.exe by yourself. it's not bundled with foobar. try here: http://www.rarewares.org/mp3-lame-bundle.php
drivers? i use the very first zip file myself and that contains lame.exe - that's all you need. obviously you need to extract it from the zip first before foobar can use it.
Wrong file, take lame.exe instead.It might only read lame for you if you've hidden file extensions.