What? You want to use their software forever, free?
I have some sympathy, but for something that needs frequent updates, I'm not sure how much my heart bleeds for you. I mean, even though I may have purchased Turbo Tax 1980, I wouldn't expect it to work properly for 1981, 1982, 1983, 1984, ..., 2002.
"Beware of bugs in the above code; I have only proved it correct, not tried it."
-- Donald Knuth