See Dr Schiano's response to updated "Live Virus H1N1 Vaccines" dated August 4, 2009 for clarification to his response to you question.
i have checked with our ID consultant. it is not a live virus vaccine so is OK to use. I do not think there is any data as to the responsiveness of the immunosuppressed individual. thus, i think there is no downside to receiving it.
See "Swine Flu Vaccine" post July 23,2009 to see if this answers you question.