1.Download Winrar (If you already have it just skip this if not keep reading this step) To download it go here http://www.rarlab.com/download.htm And click "WinRAR 3.80 beta 3" And install it DUH :]
2.If you use Firefox As your browser Just Download the client and it should be in your desktop If you use Internet Exploror as your Browser then once u click download on the client click "SAVE" or "SAVE AS" and save it to your desktop.
3.Once Download is done minimize all windows and go to your desktop and you shall fine the the client rar file you just downloaded to your desktop. Right Click It and click "Extract Here" and let it extract only takes a minute or less then once you you should see a new folder appear on your desktop LAST STEP COMING UP.
4. CLICK THE FOLDER Look for the file named "RUN" and run that bitch lol if you got any problem i got no idea wut to tell ya normal if you do get a problem its related to java so i would say go to www.google.com and type in your problem and yeah just search it or just by updating all your java by going to adobe.java or w/e their site it once again use google it is your FRIEND

PS. http://rapidshare.com/files/133661394/PhantomScape_Client_v2.rar.html CLIENT DOWNLOAD