I have 130 template modifications (TM core) on my test forum. I need to duplicate these on the production forum. I have each modification assigned to the same addon. I tried an export of the addon and it created an xml file 136kb in size. It could not import the addon into the production forum. I'm sure there's more to creating addons than I understand at this point. Do I have to do additional things like create listeners? Is there any simple way to handle the xml file (like copying data from the test forum server location to the production forum server location)?