If you mean how to show up in opensimworld, you can go here and read the instructions at the bottom: https://opensimworld.com/addregion

give Arkham city a try, they have all the latest BOM heads and all the extras. Just look them up on here.

afaik I don't think anyone did a conversion to bom for the previous heads. I've not seen them.

Ask the grid owner, or send an email to them asking to remove your complete account. They must do this is you ask.

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 ve...

You just need to have access to a console/terminal on the same grid. to save a iar: "save iar name surname / password /path/whatevername.iar" in this case you would save your entire inventory (/) if...