is there a way you can make your own IAR files and OAR files or do you need the grid owners to make them for you in other worlds is there a way i can do my own backups of these on my region
Right. Only with a console for your sim / region: http://opensimulator.org/wiki/Server_Commands
I prefer a grid where I have my own control of sim , and not always to ask an admin. An IAR can get very large to save. And then, without a console, this also has to be transferred somehow to you, so you can save it at your PC. People who travel, alot and collect stuff can so easily have an IAR larger than 12GB. So: Those create boxes at a sim, put their inventory there, delete that in inventory, and save as IAR to make it smaller. OAR is way smaller to e.g. send to you.