I spotted something unusual when I opened the addons setting in the game and noticed that the minimap icon was showing, but the tick box for it was turned off.
Ticked the box and it disappeared, unticked it and it appeared - it is working the wrong way round.
On a hunch I went into each character, unticked and ticked each setting in turn and saved the character again, and did the same with the guild.
Just re-uploaded the data and everything (even stuff I didn't realize was missing) has appeared.
Now all i have to sort out is why I get some strange long hex numbers appearing when I hover over the items
but I can bash that one through in my own time.
Many many thanks for taking the time to look into this for me, who knows, someone else might have the same problem.