I currently have XOOPS installed on one of my sites and need to move it to a subdomain (http://www.subname.mysite.com).

What are all the files that I need to edit to get this done?

Next, I need to reinstall another version of XOOPS in the main domain, will this cause any problems, example

current XOOPS install will move and remain on (http://www.subname.mysite.com)

fresh 2nd copy of XOOPS install will go on (http://www.mysite.com)

Lastly, will there be any complications with running 2.2.x on one and 2.0.x on the other?

Thanks for the help. I just wanna make this transition quick and painless as possible, lol.

Moving a site is as simple as moving the file structure and editing the mainfile.php to reflect the new physical and virtual location of the site.

Installing a fresh copy, even if it is a different version of XOOPS in a different directory will not cause any problems as long as the two do not share the same database.