BoinxTv update error

I am using Mac OS 10.7.4. I downloaded BoinxTV from the website and not the app store. I get the following error when trying to update to 1.8.4 from 1.8.3

Update error!
An error occurred while extracting the archive

Hi there, sorry about that. Please manually download the update from our Web site and install it by hand.

Can you please tell us where you are from and what ISP you are with?

Hi Bastian… Where can I download the update manually?

@mynewstv: You can download BoinxTV from our download page here: http://www.boinx.com/download/#boinxtv