How do i upload my backup and run it from their? Thanks.
It's in Admin CP -> Maintenance or Settings.
Upload the database back up? I import mine through phpmyadmin.
1. Take the downloaded backup and then upload the home folder to the _root_ of your site (usually /public_html/.)
2. Take the database.sql file, and create a database with the same information as you did last time.
3. Take the database.sql file and execute it on the new database to put the information in.
4. Edit the MyBB configuration if you changed hosts and have a new username, for example:
example1_mybb
example2_mybb
5. Once done, your forum should work.
I would take the time to read
this, it will help you out.