ONLY VPN WORKS WITH TALKTALK
Regrettably, DNS does not work for Talktalk customers in the UK - only our VPN product does.
The reason for this is due to way that Talktalk have implemented their blocks. For the technical amongst you, Talktalk use a technique known as Deep Packet Inspection (or DPI). As the name implies DPI involves the examination of IP packet contents and filtering based upon the results. For non-technical users, you'll just have to accept that it can't work easily.
We do know how to bypass these blocks but the additional resource required means that we're unlikely to be able to offer a solution in the near future. Feel free to contact us with proposals...
For now, we cannot recommend Talktalk as an ISP.