I installed the build system for OpenWRT and wanted to create the html from the LaTeX documents, but my standard Slackware release 12.0 did not have the "htlatex" command.
Doing a Google, I found "htlatex" as part of TeX4ht at:
www.cse.ohio-state.edu/~gurari/TeX4ht/
There is an old Slackware 10 version of TeX4ht at LinuxPackages but I could not get it to work.
So I downloaded the source from the Ohio State site and created my own Slackware 12.0 package for download:
tex4ht-2.0
The package might work on Zenwalk too because it is based on Slackware.