They're not mentioned because they're largely useless.
$116 billion is payroll tax cuts that amount to $400 a year for singles, $800 for married people filing jointly. If they don't make too much money, that is. After 2010, it's gone. Don't spend it all in one place--it's not going to work any better than Bush's "stimulus" checks did.
$70 billion is another temporary break from the Alternative Minimum Tax, an abomination that should have been killed completely a long time ago.
$6.6 billion is a raise in the credit for first time homebuyers this year
And a grand total of $5.1 billion is a break for business equipment investments--the only thing in this entire package that will actually create some investment.