need to right cclick and run the program as admin maybe [once] - that should give it admin rights to the folder on your system disk

edit - you cant just copy the files because they need to be in the index xml file that xara creates, otherwise the program will not see them

sio I suggest you run as admin and see if you can now see the templates that are missing

you may need to remake your new template into the default folder

ok i see in your edit you have maybe solved the issue ?