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An alternative method to unblock access to fileunlckr.com is to change your DNS servers. Some Internet Service Providers (ISPs) such as Telecom, Verizon, Comcast, Earthlink, Windstream, DSLi and others, may block access to specific websites if you use their DNS servers. However, thanks to Google Public DNS servers you can bypass ISP restrictions and access blocked websites. Find more information about how to configure Google Public DNS.
If you cannot access fileunlckr.com via a web proxy you may try to purchase a premium VPN provider that can unblock access to any website without problems. I can personally recommend you to try HideMyAss VPN, the best VPN provider on the market with more than 800 servers around the world, and counting. With a VPN you can anonymyze all the software installed in your PC that need access to Internet.