Thank you all for help.
Program files\TTP\ folder didn't exist unfortunately.
I contacted Virgin Mobile who were really helpful. The guy said that with the hard reset, the TV and Radio program SHOULD load up, and he had never heard of it not working. I tried the reset a couple more times in case it had corrupted, but it didn't solve it. Virgin have replaced the phone with a new one (very good customer service IMHO!), and the new one works just fine. May be telling wm5storage to view the internal chip, even though i ticked read only, may have caused it to corrupt in some way and revert back to an even more basic version of the rom??
Just a few quick notes in case anyone else ever has similar problems. When I had done the hard reset and the phone worked ok but without the TV and Radio software, the home screen didn't revert back to the virgin mobile one (as it was when I first got the phone), but back to a more default windows mobile one (same as my i-mate SP5), I don't know if this is also another effect of the underlying problem.
Also, strangely, originally when the phone was pretty dead (wouldn't get past the windows mobile spash screen), I found that if I plugged the phone upto the PC, it would briefly connect using active sync, but only once I had turned the phone back off and it was back to the virgin mobile turning off splash screen.
Great phone though, pity it is a little chunky but it really is tiny for a DAB radio, and can't speak highly enough of VM.