So the wrapper is the newest. I don't keep release versions in mein noggin.
Use the newest engine here (at time of post it's 1.7.4):
http://www.mediafire.com/wineskin#u3ekk5q5y3fb1
If that link doesn't work, go to:
http://wineskin.urgesoftware.com/tiki-index.php -> click "Downloads" in the box -> The find "Mediafire.com Wineskin download location" ->
http://www.mediafire.com/wineskin -> find the newest one
*also download newest Winetricks from the advanced menu