Sort index match if condition

I'm wanting to return a list of orders, that have been shipped, while sorting them from oldest to newest. The table would look something like this.

Dates________PO#__Shipped_____Return
6/8/2014_____123_____x________963
6/4/2014_____456_____ ________741
6/6/2014_____789_____x________753
6/3/2014_____963_____x________789
6/6/2014_____852_____ ________123
6/4/2014_____741_____x________
6/3/2014_____159_____ ________
6/5/2014_____753_____x________

Post sample file with expected result

Here you go. :]
Sample.xlsx

=IFERROR(INDEX($B$2:$B$9,MATCH(SUMPRODUCT(LARGE(($A$2:$A$9+ROW($A$2:$A$9)*0.0000001)*($C$2:$C$9="x"),COUNTIF($C$2:$C$9,"x")-ROWS(E$2:E2)+1)),INDEX(($A$2:$A$9+ROW($A$2:$A$9)*0.0000001),0),0)),0)
try this in "E2" and copy towards down

you can use pivot table also

What are the *0.0000001 for?

This helps to catch the date which comes more than 1 time

Thank you, this has helped me a lot.