Please check it, thanks!
Thanks for the report. I just tried downloading http://beta.jivesoftware.com/builds/jive_group_chat_1_0_beta_2.zip and it worked for me to unzip that file. The file size is 3.86 MB. Could you check if you are downloading the whole file? Let me know if you are still having problems unzipping the file.
I just updated http://beta.jivesoftware.com with a new zip and tar.gz. Both have been tested from the site and everything looks good.
The ZIP file did not fine right now, But i download tar.gz file, and renamed it as ZIP file, that unzip fine. I don’'t know why, maybe my WinRAR software have something problem.
Thanks for your attention,