LtU has a post up on access to archived PDFs of the Smalltalk Report:

For 1996 there's a link to each of the pdf files and there's a pdf index for the earlier issues 1991-1995 afaict we must play with the URL to reach the pdf file, so '91 issue 1 SMAL0101.PDF and '92 issue 3 will be SMAL0203.PDF