Smart Client Software Factory installation

Hi,
I’m in desperate need of help with the installation of the Smart Client Software Factory – July 2006.
The actual problem appears when I try to register the guidance package and I get the following error message:
Web Service Software Factory – July 2006, The installer has encountered an unexpected error installing this package.
This may indicate a problem with this package.
The error code is 2869. OK

Can anyone help me with this, please; I gave up trying to solve it myself?
Thanks a lot.
