Hi there, I had the same problems. First It installed perfectly on my local computer and when i uploaded it to the server it behaved the same way i see at your example. The problem cannot be in the code i guess because it worked fine on my computer. So the problems are most likely the settings (chmod) on the serverside. So i started changing them (i found a hint somewhere online related to a JFolder error).
SO when u set the cache folder to 755 (just set it open) it will work. If it doesn't work yet, then check if you have files in the cache folder that you have uploaded from yourlocal computer (if you have tested the site on your local machine) Just remove them.
This i my site:
http://www.eengoedemaaltijd.nl/good luck, let me know if it worked for you.