I have downloaded and installed the Strataflix application

When I go to compile the Srataflix Solution (c#) i get a message - selected solution is a solution file..but was crated by a newer version of the application and cannot be opened ..I am using VIs Styudio 2005

When I try to recompile the Project , I get 4 files cannot be found

....Strataflix.Base.Dll  .....Business.dll   .....Reporting.dll and ......ui.dll

Well, you will have to create a solution for VS2005.  The projects can then be added back into the VS2005 solution.  StrataFlix was created using CS2008 which just means that the solution and project files are in VS2008 format, but the source is the same for both.  You just need to create a VS2005 solution manually, then add then projects into that solution.  Do you still have a copy that was working from the training class?  That might be the place to start.