Hi Kevin
The Project Suite, as you already know, is simply a collection of projects, so what you can do is create a one or more project suites and within each, create projects that relate to specific areas of your application under test. That way, you should more easily be able to know where to find a specific test.
The basic idea is that of a hierarchical structure so that the project suite relates to one major component of the application, the projects within it are specific to certain modules within that component and the tests within the project relate to testing specific areas of the module.
This is a simplistic, generalised 'top-level' overview - you can organise your own tests/projects/project suites to best suit your own working practices.
Hope this helps!!
Regards
Stephen.
