The Toad for SQL Server Edition installer includes:
Toad for SQL Server 7.1.0
Toad Data Modeler
SQL Optimizer for SQL Server
Your Toad for SQL Server license key determines the edition and will enable the appropriate functionality accordingly.
The Full installer is intended to be used by administrators installing for multiple users. This installer downloads all components, but only installs the ones the user selects from a list of entitled components, based on the license key entered. This can be used to install either 32 bit or 64 bit.