i was trawling the net for answers to the same question so i decided to share what i found.. perhaps this'll clear things up :)
i've found 3 versions, as follows;
One for sorrow, Two for mirth,
Three for a wedding, Four for a birth.
Five for rich, Six for poor,
Seven for a witch -- I can tell you no more.
One for sorrow, Two for joy
Three for a girl, Four for a boy
Five for silver, Six for gold
Seven for a secret never to be told.
Eight's a wish and Nine a kiss,
Ten's a bird you must not miss.
One's sorrow, two's mirth,
Three's a wedding, four's a birth,
Five's a christening, six a death,
Seven's heaven, eight is hell,
And nine's the devil his old self.
peace