The 1998 Lancet study showing a connention between autism and vaccines has many problems with it including a small sample size and lack of experimental design. In addition, the Lancet editors retracted the study in early 2010. So, while vaccines may be made of harmful ingredients, there has been no causal link to the diagnosis of autism spectrum disorders.
McGuiness, T. (2010). Update on autism and vaccines. Journal of Psychosocial Nursing & Mental Health Services, 48(6), 15-18.