Good to see you improving that page, I must admit it was a bit minimalistic.
Some comments:
-this page will probably overlap with the installation page (
http://www.luxrender.net/wiki/index.php ... tion_guide), which is outdated, overly detailed and incomplete. I'm not even sure we need two separate pages, but if you think we do, please try to find a logical way to separate the content.
-the page seems to be specific to Blender users; it would be good to acknowledge this somewhere and/or link to another page for people using other modelers
-when using the numbers so clearly in the layout, it looks like one is supposed to go through all of them, but this is not the case. Also it is hard to get an overview of the steps involved without reading everything. Is there a reason why you don't want to use wiki headers?
-all pages have their title displayed in the browser title bar and at the top of the page already, for the sake of simplicity I'd prefer it if you don't repeat it on the page itself
-rather than asking new users to chose between a development and a stable version, I propose to point them to the most suitable one. At the moment, that is the weekly build; after the release, it will be 0.6 and probably only a few months later it will become a weekly build again
-OSX users can just copy the luxrender.app, update their luxblend scripts and get going
-weekly builds for Linux users are rare, while compiling on Linux is easy. You could refer Linux users to the "building on Linux" page
I think the first point is the most important, please let me know your thoughts about this.