Clicking on the speaker icon made an eerie message play. From whom is debated.
Transmission061607.mp3
After copying or writing down your key, you would click the arrow and go to another page where you'd input your key and have to apparently solve a riddle key as well. I unfortunately didn't have the mind to screenshot that, sorry

A light shines down a narrow corridor and a metallic object floats towards you. The thing stops and begins to spin. It spins until you click on it. When you click on it, it stops moving for 7 seconds. This allows you to click on one of the 5 icons on the object. Clicking 4 of these will download files to your computer. The fifth makes the machine play a video.
Here's the post detailing the video: viewtopic.php?f=25&t=535
The other files from the Flash are as follows:
Array_Recorder_Data.txt - This is a log of the final moments before the Halos were fired.
Log5_Transcript.txt - This is a transcription of the Server 1 video.
StarImage1.jpg - A star chart.
Slide_Ref070107.jpg - We don't actually know for sure.
As of June 28, 2007, the artifact began making a clicking noise every 5.32 seconds.
You can get to Server 1 by a redirect from http://206.16.223.65 or by going to http://206.16.223.61/E5h2JK/flash/web/index.html