The merger adjusted stock price refers to the price of wamu for determining how many shares of wamu you would receive. In the example, they use a price of 40(kind of funny), times the 1.1232 merger adjustment, which means that $44.928 would be the price used to determine how many wamu you'd receive even though wamu was trading at 40. If the amount recovered was 44.928/ltw you'd receive 1 share of wamu using those numbers.
In the present situation recovery will hopefully be paid in cash.