Hi Bluehillstamps, are you uploading your images during listing/template creation ?
If so this seems to be a frequent cause of problems. I would advise that one should always upload all images before you start editing templates and listings. Keep the two processes seperate because the internet can often hiccup and it is quite possible the editors do not recover from a failed upload gracefully and hence you lose all your work.
As with any long editing session you must save regularly even though it can be a real pain at the time it is far less painful than an hour of work disappearing in a split second.
I always upload all images for a listing (one listing or even enough for 100 listngs at a time) first as a totally seperate operation. Create the templates/profiles/seller details and then assemble the listing. Works cleanly everytime. (I use XP/IE6)