CkFinder ASP no thumbnails on Windows 2000 Server

The company is work for recently purchased a licence of CKFinder for Corporate Web Sites, after development all was working very well on our development server (Windows 2003), while transfering the site and CMS we created to our clients server we encounter thumbnail creation difficulties with CkFinder for Classic ASP using ASP.NET for thumbnail creation.

The server of our client is a Windows 2000 Server SP4, all updates are installed as well as ASP.NET 1.1 and ASP.NET 2.0
To test if there was something wrong with the configuration of our clients server i this weekend decided to do a clean install of Windows 2000 on Windows Virtual PC. I installed Windows 2000, Updated it to SP4, Installed IIS, installed all available updates from Windows Update and Installed ASP.NET 2.0.
Damn, same problem, no thumbnails are created, in debug mode all I get is the following message "Unable to find an image manipulation component"
I verified the ASP.NET installation with a simple sample script, this script is being server ok, so there seems no issue with the ASP.NET installation.

File permissions are all ok, ASP.NET and IIS guest account have sufficient permissions for "%windir%\temp" and to \userfiles directory.
Hence i even tried setting "%windir%\temp" and to \userfiles directory to be fully accessable/writable to the "Everyone" account.
It doesn't make any difference, it just won't work

While trying to narrow down possible permissions issues i used Microsoft Sysinterals Filemon to view what files/directories are being read/called/written to.
0 kb temporay ckfinder files are succesfully created in %windir%\temp, but i noticed same kind of files are tried to being created in the "C:\Documents and Settings\[%MACHINENAME%]\ASPNET\Local Settings\Temp" directory just before the files are written to %windir%\temp.
This process seems to fail, even after setting permissions to allow full access for the "Everyone" user... ASP.NET account already had sufficient permissions set.

What can be wrong? the "C:\Documents and Settings\[%MACHINENAME%]\ASPNET\Local Settings\Temp" is new to me, is this only created on Win 2000?

Additional note
As there is no word of CkFinder not working on Windows 2000 i assumed this would work, CkFinder requirements only report is requires ASP.NET 1.1 or 2.0.
I feel misled by way CKFinder is advertised and lied to about it's requirements.
We intentionally purchased a Corporate Web Sites of CkFinder as our client is a big international company where all of it's seperate country offices can/and must be able to enter the CMS, the CMS is located on all this company websites and the domains extensions this client uses are eu, be, de, nl ,fr, lu, ru.
As it seems we now have to purchase a additional commercial components CkFinder uses to make it work, meaning additional cost not calculated.