There are a few bug fixes in this release however the main change is that the Execution report no longer displays loop iterations as executables.
The installer (that you download from this site) will place the report .rdl files into a folder on your hard drive, by default this location is "C:\SSIS Reporting Pack" (you have the option to change this when you run the installer).
Installation Steps
As well as the report files it also creates a file called SSISReportingPack.rptproj - this is a Reporting Services project that, when double-clicked, will open up in Visual Studio (assuming that you have the SQL Server 2012 development tools installed on your machine). From there you will be able to deploy the reports in that report project just as you would any other report project.