The first part of installation is the easiest. However, configuring everything after the install is the hard part. These Howtos covers it!
The Slackbook (linked on Slack's main site) covers the same ground. This link also seems a little outdated, specifically because it talks about XFree86 and Slack's been using Xorg for quite a while now. Either way, if it helped you it might come in handy to other people as well, so thanks for the link!
You're right. i downloaded an old version. :mad: