php traffic trading script modification

Hello, I own this script. [login to view URL], you can see the demo. I have a 1.2 version and a 2.0 version that is each a separate install. I need 2 changes to the script. 1.--I need to have made a 2.1 version that can automatically easily upgrade either 1.2 or 2.0 versions without hassle. 2.--I also need version 2.1 in the admin panel to change the traffic tiers to have 7 tiers, (currently only 4), and allow the admin panel user to input what countries they want for each tier. Thanks for looking,