ASP app is throwing error when trying to load any of the Crystal Reports

Question

The type initializer for 'CrystalDecisions.CrystalReports.Engine.ReportDocument' threw an exception.
A couple notes:yes, I did search for this problem, I've read (and have been confused by) the documentation both on MSDN and this site. I've never used Crystal within a .NET application that I've written, so please treat me like an idiot.  I've got 16 hours in this issue and I can't figure out what to do.  I don't want to go too far into what I have already tried; I'd rather start a fresh conversation with you (the kind person who is going to save me from death at the hands of my users).
My application was written in .net 1.1 by an outside source.  Since then, other apps were installed on the same server that were .net 2.0 (don't know if this is relevant).  Recently, we reformatted the server.  When I dropped the application back into its former location and hooked it up to IIS, everything was fine except now we can't get any of the reports to load.  We just get the error above, along with another that says "CrystalReportViewer - rptViewer Error: Object reference not set to an instance of an object."
The same thing happens on both my Win 2003 app server and my XP SP4 development machine.

Answer 1

I was doing a side-by-side comparison of the new and old server (we backed up the server before the reformat) and I can see that, evidently, CR XI was installed.  We have the directory C:\Program Files\Common Files\Business Objects\3.0 and all the versions match what is located in the project's bin directory.  Does this confirm that I did have XI installed and licensed at one time?
If I purchase a more recent version, couldn't I update the reports to use the newer version?  I have all the source code.
Thanks for your help, it is a nice sanity check for me after hours of reading forums and documentation.
Also, just a shot in the dark, but I'm assuming it wouldn't do me any good to simply restore the aforementioned folder to my C drive?  Would that work if I registered all the dll's?
Edited by: Eric Hollering on Dec 2, 2009 6:40 PM
To be clear, I do have VS 2003 & 2005, and I have the source code.  I just have never used Crystal Reports in any of my .NET apps because the need wasn't there, so recompiling is not out of the question.
Edited by: Eric Hollering on Dec 2, 2009 6:49 PM
Also, I looked at the CrystalDecisions.CrystalReports.Engine.dll that was in the C:\Program Files\Common Files\Business Objects\3.0\Managed folder and when I right-click and view the properties, then the Version tab, in addition to the 11.0.9500.2 version number, there is a property called Product Version that has the value .NET.  Does that mean that this dll was bundled with Visual Studio?
I also found this directory on the old server...does this tell you anything?
C:\Program Files\Business Objects\BusinessObjects Enterprise 11
I did see that you can still buy XI from CDW.  I have a call into them currently to check with Business Objects for any registrations from my company.
Edited by: Eric Hollering on Dec 2, 2009 8:27 PM