good call andrew! although the fix seems a little more involved than just adding the ia32-libs package.
i had assumed for some reason that slackware 13 wasn't a pure 64-bit system and thus had libraries installed to run any 32-bit programs it shipped with. wrong, a bad assumption. there are in fact two releases, one a 32-bit version and the other a 64-bit.
so... for anyone else who might run into this issue. follow the link below for instructions on how to resolve the problem. i've yet to try myself, but will post back and let everyone know how it went.
http://alien.slackbook.org/dokuwiki/dok ... e:multilib