get only last entry for an id

hi guys, ive a table with multiple entries for each id.. (entry of fees paid by students each month..)
now i wish to generate a report with the last entry for each student.. (meaning it will show the last balance and paid amounts of diff students..)
how do i accomplish this.. i tried distinct command but couldnt get the syntax..
one way is getting the last paydate(one of the columns for each id and displaying that record.. but how do i do that??)