I think your challenge is not so much one with ACS as of what's included in the base package of the software. It is my understanding that SPSS treats weights as frequency weights unless you have an extension package (e.g. Complex Samples package) installed. (See:
www.ats.ucla.edu/.../weights.htm)That said, the Census Bureau wrote code for an older version of SAS that does the replicate weight processing step by step (rather than the newer jackknife command). Read:
usa.ipums.org/.../repwt.shtmlThere's a link toward the bottom, "Estimating ASEC Variances with Replicate Weights" that contains the code (
usa.ipums.org/.../Use_of_the_Public_Use_Replicate_Weight_File_final_PR.doc).
You may be able to re-work that code for SPSS.
(Note: When I opened the document, the SAS code was gibberish, but changing the text format to Arial fixed the problem.)
Let me know if that helps!