Old news relative to Facepunch Forums, but new news to here:
In case someone wanted to use the program, it has been majorly updated, and most of the information in this post is a mirror copy of what was said on the Facepunch Forums.
-Added Portal content extraction
-Redesigned the extraction selection list to mimic server selection list
-Tweak minor bits of aesthetic code.
-Fixed the Flickering Page Tabs
-Fixed a bunch of element background transparency issues.
-Minor UI changes.
-Fixed a bunch of internal code.
-Removed the progress bar in favor of having text-based progress indicated. (This is more accurate, and takes up less screen space.)
-Main program is smaller now. (Screen-space-wise)
[i]-Added Error Handler to prevent the program from crashing if the user does not select a server type from the server list before choosing to generate a launch script or installing the server.
-Fixed minor text issues.
-Added tooltip hints to the page tabs.[/i]
[i]-Added Generate Script button to automatically generate a script to use to launch the server.
-Fixed some content not properly extracting.
-Added Day of Defeat: Source to the server download list. (and the script generator button functionality)
-Major UI changes, (Hopefully more intuitive usage this time around.)
-A prototype disabled downloader button for giving server operators an option to download content from Valve to add to the server rather than extracting the content from a preexisting Steam client installation.
-Script generator now appends the server type onto the end of the batch script created, for easier identification and organization.
-Other miscellanious minor changes.[/i]
-The program will not work properly in Windows 8 unless you run the program as an administrator, to give it elevated command line access.
Download Link Version 1.85: