To perform comprehensive system testing you should install the databases on a server which is capable of running Microsoft SQL Server v9.0 and the osImageManagerApp program on a workstation that has the following specification:
100 MB Free disk space
Windows XP Professional with SP2
(recommended) run Windows update to get latest patches and version 3.1 of Windows installer
Note: If you just want to evaluate the system and/or run the User Acceptance Tests then you can install SQLEXPRESS and the URA databases together with the osImageManagerApp on a single workstation - see New Database Setup for UAT