Radio button doesn't work correctly

[SkyFan]

I bought this device mainly for recording radio stations. It was my understanding that the Vix software would be the same as on the VU+ Duo 2. It seems to look the same however if I press the down arrow on the remote I then see a list of channels. Normally on a VU+ Duo 2 I would then press the Radio button and it would show a list of just Radio stations with it's own "Radio Stations" menu. However on the Tiviar Alpha+ nothing happens when I press the radio button.

I then looked at Providers > BSkyB and it shows a list of all TV & Radio channels in alphabetical order but all mixed together. If I press the Radio button on that then it takes me to position 656 on the list of channels which is BBC R2 which is about three quarters of the way down the list. All the radio channels are grouped there and there's more TV channel below them.

I'm using the Vix Tiviar Alpha+ 5.2.022 image.

How do I get a proper Radio Channels list like on the VU+ Duo 2?