Migrating tuitionads from iwebhosting to ipserverone

Due to slow and security concern, I have decided to migrate the tuitionads to ipserverone.
Firstly, I need to get the migration code from iwebhosting - easy, there is a way from their menu itself
then, I share with ipserverone support and they trigger the migration process
Within 3-5 days, the domain is migrated but I need to move the wordpress over

backup the entire public_html directory and ftp to the ipserverone
backup the database and restore onto the new ipserverone xxxxwp5
but there are few more changes required... wp_config,
change the domain from tuitionads.com www.tuitionads.com
change all the pages with db connection - to using new databse, user and password.
surprisingly, ip serverone doesn't allow to change the db name or even create new user

How to identify the AMI (for the instance) and also the creation date

As we creating more and more instances, it's important to know that the instance was created based on which AMI. First, there is a relationship between the snapshots and AMI in the snapshot's description. based on that, you shall be able to tell the creation date of those AMI.
E.g

The jinercel instance was created based on the ami-6cce9c3e
Refer to snapshot this ami is created on the May 14 2014
So in order to determine the earlier AMI which was without the A2Billing,
It shall be the AMI created for the alwaysblue instance (ami-b096dce2)
which was created on Oct 14 2013