Hi Sue,
Eduardo gave you the correct answer regarding SQL Server options.
You can either:
-> Install it on a 2008 R2, apply the Stack with SUM and then upgrade to SQL Server 2012 (with prerequisites);
-> Install on SQL 2012 and after the installation is completed (immediately) you have to configure the TMS and use SUM to apply the required SP stack defined in note 1651862. This is documented in note 1676665.
About SUM or SPAM/SAINT, the experts in the following space might have better assistance to you:
I hope it helps you.
Best Regards,
Luis Darui
SAP Support