You can't restore your website from backup or what?
You need to install the software
Install the same set of plugins which you had on your other site
Then go to config.php and change DB name/username/password data to the restored database data.
As soon as you done step 3 do not enter your website, you need to go to www.yoursite.com/ow_updates and run the update
After that you go to your admin panel and update your plugins DB, you'll see the notifications.
You have restored it, right?
Now you need to install new software and connect it to this restore database, see my instructions above.