ok, I'm a tad confused here. In the downloads section, the description, for the file "LiteStep0[1].24.7_31-114.zip", reads as follows:
"This is a LiteStep BUILD. It comes with all of the components that make up the LiteStep application. When you download this you will need a theme and modules to go with it before it will work for you. ..."
nowhere in that description does it mention anything about requiring a previous build.
However, quoting xcal:
"That's a build update (to the final 0.24.7). You want to get the installer first.".
The litestep wiki also doesn't identify omar's installer as a requirement for installing litestep; in fact, it describes, besides the manual way, a rather elegant method of configuring windows to use litestep by using the windows group policy editor.
Heres a link to the Litestep Wiki -> Litestep installation page http://wiki.litestep.com/LiteStep:Installation;
here's a link to the wiki's main page: http://wiki.litestep.com/Index
its a good place to start.