Accessing Foreign Market apps through VPN

Hi this is my first post, I hope I put it in the right section.
I live in south Korea and many foreign applications are not available in the market. I tried a few ways such as going on appertain etc.

Anyway, basically I seem to have been able to download what I , words with friends, but it doesn't seem to be on my phone. In the marketplace the option for "uninstall " is available but when I click it it says the file can't be found.

Any thoughts on how I can get it working or at least uninstall it to try again?

sorry for the long post!edit: I forgot to mention that I am using a VPN.