I am sorry I've missed your second issue regarding on the ratings. It seems like you have set a custom module class suffix from your backend > module manager > mod_easyblogshowcase > advanced > module class suffix and you have entering the class suffix without spacing at the beginning.
The javascript will not able to call the module class of the easyblog module hence it will return error. I've fixed this for you by adding a spacing for your class suffix and everything is working correctly now,
http://screencast.com/t/CSX0B3bG9fm .