Can no longer see location fields when editing / adding location enabled nodes

Hi everyone,

I've achieved a really great Locations installation; multi-site (two sites), location enabled on two content types, one a content profile, the other an ordinary node. I have complicated relationships working between content types. I have gmap working showing all nodes happily. On one of the sites I have a proximity filter working (people can find their nearest branch, etc.). I have location addresses nicely formatted and showing in Views, in user profiles, as blocks attached to nodes, the full works (happy to share any part of how I achieved all this, btw).

One small thing; the two sites are now 99% complete and the client is keen to go live. However, we've noticed that whenever we go to edit a node with locations attached (attached directly to the nodes, we're not using the CCK Location field), we no longer see the Location fields to either edit them or to add a new location. The same is true if we go to create a new node and it's the same for both sites and in both content types.

Aaaarrrghhhh! Help!

I'm happy to share a link to the site with any experienced Drupaller who can help me figure this out, I've posted a couple below really just to show the functionality but clearly whoever helps me would need user 1 access to see the node/edit forms, so please, please, please contact me if you're good with Locations and are willing to help - I will be really grateful and would be happy to pay a small bounty if you can help.

Here are some links showing some fo the functionality:

Members map, site a: http://aw2.underdesign.co.uk/members-map
Proximity filter, site b: http://esandpat.co.uk (bottom of the page)

Regards

Patrick Nelson