Just to save some others from the sort of "now, why did I do that?" moment I recently experienced, I'll caution y'all that you probably should NOT use a Slackbuild to install compile and install the Webmin system admin tool.
Webmin has a very effective and easy update tool within Webmin itself, and an good package removal script. Plus the setup script for the Linux binary is VERY easy. (Instructions -- which can be hard to find off the home page -- are here: http://www.webmin.com/tgz.html
But if you get carried away with SlackBuilds like I did, and then update, you've now got a mess that neither "removepkg" nor "/etc/webmin/uninstall.sh" can remove completely.
So, unless you are going to make a new SBo package every time Webmin comes out with a patch, you probably should NOT use a pre-built package OR a Slackbuild script.