is the presale still available? just send eth to the address on the site and CNT  will be sent back?

Whats up everyone!

A few days ago i tried to load my SiaCoin Client on windows and it has been loading since then.  Just has the message saying "Loading can take a while after upgrading to a new version"  Does anyone know whats causing this? Any help would be greatly appreciated

Thanks and have a great day!