Unfortunately the vast majority of the loans that were structured in the most recent sub prime market that ended up at the center of this fiasco were structured in such a way as to not have PMI. Basically PMI is required anytime you obtain a mortgage for more than 80% of the balance. So if you put down less then 20% down then you were required to have PMI. However, under the loan conditions that were in this market you could obtain a 2nd mortgage for the 20% and thus not have to have PMI. Hence the private mortgage insurance program has not been as involved as it would have been in times past.
Unfortunately the vast majority of the loans that were structured in the most recent sub prime market that ended up at the center of this fiasco were structured in such a way as to not have PMI. Basically PMI is required anytime you obtain a mortgage for more than 80% of the balance. So if you put down less then 20% down then you were required to have PMI. However, under the loan conditions that were in this market you could obtain a 2nd mortgage for the 20% and thus not have to have PMI. Hence the private mortgage insurance program has not been as involved as it would have been in times past.
Good Luck!