Debbie,

I would not recommend hiding the reports since sometimes users want to go directly to a report rather than having to navigate via a summary report.

I would recommend scripting your reporting hierarchy using the Reporting Services Scripter tool that can be downloaded from here:

http://www.sqldbatips.com/showarticle.asp?ID=62

This tool basically automates many of the tasks required to maintiain SSRS site and uses the object model by creating an executable to perform repetitive tasks.

You can refactor the generated code to create routines to create reporting hierarchy and one for uploading reports to that report hierarchy. Unfortunately, this can not be done via Visual Studio; however, once set up this is easy to maintain.

Hope that helps.