Thanks RJS for your, as always, thoughtful and thorough reply. Here's an update.
I was able to purchase the 2013 California State forms set download from Intuit TurboTax support in a Customer Service call. The file name is w_california_ind_2013.10a.0101.exe. The 2012 California State forms download version is not available through Intuit TurboTax Customer Service. The CSR claimed that it is not on their servers.
In the end I will probably be able to obtain the 2012 California forms set file from another source. I'll let you know how that works out.
