Various mods to Social Engine 4.1.1

I'm running Social Engine 4.1.1 I don't write code, and pretty noob, so need assistance with the following: 1) Change my domain name. I need to set a new domain name, and also set a list of domains I own as add on domains. 2) Utilizing a plugin called "catalogue/listings" , I've created a custom name for that page on my site. If possible, I'd like to get the url changed to better match my custom page name. 3) Set up an ftp site for me. 4) Use my back up and restore plug in and to take a back up and make sure it seems to be working/doing what i need it to.