After creating and verifying the project, you will need to make some adjustments to the wizard generated sources. If you make these once and back them up as suggested, then if you need to regenerate the foundation, you can just restore these files from the back-ups.
We don't ship modified versions of these ASPs since they are MS copyrighted. Everything here is based on SSC 3.0 with SP 3.
In each case, you copy the wizard generated *.asp file to a same named file with extensiona ``xasp''.
Note that when operating in the context of the XASP customization pages may be broken due to session state, but magically if clumsily will still work if you keep hitting refresh!
Note also that in the process of integrating XASP with SSC, we discovered numerous errors in the wizard generated sources.