@Geoffcapes
When you download the poi files from pocketgpsworld they are xml/csv format, which you then upload to the Audi connect website.
Then you click "download" or something on the website and it will download a .jlpn file which you will open. This is a java app which will create a folder on your PC with the files needed for the car. Within these files is one called categories.pc if you open that one up in notepad you will see the max zoom levels for each poi, change them to 30. It's obvious what you need to change.
Save the file and then copy all files and folders to a USB stick / sd card to put in the car and then run a software update and then you should see them in nav.
Once you get the files its pretty straight forward and if stuck, ask

I don't think there's too much that can go wrong with it anyway.
There are some nice camera icons, I think in this thread so you can see the difference between red light cameras, gatso, specs, "mobile cameras" etc. You upload these to the Audi Connect site when you upload the files from pocketgpsworld.