Make sure to upload all of the powergallery files to the server. It appears the /js/ files are not on the server. It is displaying this way becuase the .js and .css paths are either missing or incorrect.
for instance the file:
AC_RunActiveContent.js
and many others like it if you view the source of the page and look at the .js and .css file paths they all don't seem to exist on the server when I try to access them.