Conditional "If Statement" Help

Help with conditional "If Statement"
There are 2 worksheets "Selections" and "Member Payments"
I am trying to achieve the following without success:-
if "Selections!B2>0" and "Selections!A2= "7/1/12" then "Member Payments!A2" should = "Selections!B2" ($2) ...and so on
Having trouble making reference to dates