I am trying to upgrade the xibo cms version 2.0.0 in Xibo CMS version 1.8.12 server Windows 2008 Server. But it is not upgraded

Hi,
I am trying to upgrade the xibo cms version 2.0.0 in Xibo CMS version 1.8.12 server Windows 2008 Server. But it is not upgraded.
Please provide me upgradtion steps.

Thanx in advance.

Regards Prasad

I’m not getting it either, gets stuck on the screen with the msg below.

The CMS is temporarily off-line as an upgrade is in progress. Please check with your system administrator for updates or refresh your page in a few minutes.