I got my replacement iPhone today, first I activated + jailbroke using ZiPhone and iPlayer worked perfectly but got no signal with my o2 sim, so unlocked using iLiberty (kept the 4.6 BL) and got signal but then the iPlayer stopped working as before. Found a fix on HUKD that sorted it which is as follows:
Clear cookies/cache and reset network settings
Connect to a WiFi or Edge network
Go to installer from the home screen.
Go to 'sources' on the bottom right.
Press 'edit' on the top right, press 'add' on the top left.
Then it'll pop up with a box for adding a weblink, add
http://appledailytimes.com/installer
click ok and it'll refresh the resources. (all this has to be done with internet on)
Go to the Apple Daily Times section in 'Install' and the safari patch for the 1.1.4 cookie issue will be in there.
Restart iPhone
Go back into safari and iPlayer should now work (at least it did for me)
If all is good you can go back into installer and uninstall the cookie patch