Hi Steve,
Thanks for your reply. Can you please write back to me via email? It's a bit difficult to go through the details here on the forum :) I'll try though: regarding the privacy, that's understandable and completely your choice -- not a problem -- but please also understand that without a link to look at or access to the code, it's impossible for us to fix this issue for you.
For your reference, Shopify also has access levels so you can give staff access to only certain areas of the store (e.g. only Themes, and block people from seeing sales / orders / etc.), as outlined here: http://docs.shopify.com/manual/settings/account/staff-members
So -- let's try to discuss via email. We do need a login though, or you'll need to figure it out on your own. Here to help if you can respond to my note.
Thanks!
Tristan.