If the extract stops half way through, it means that you didn’t fully download the client. You need to download the client again. If you have a slow internet connection I suggest you use a Download Manager (such as FlashGet).
I can confirm that the current client works, as I just downloaded it, extracted and updated the client and it all worked fine.
Also don’t make topic titles like this because it looks like there’s a problem with the client itself and it is misleading. I will change your topic title this time, but be more considerate.