Try
ArraWin!
Press Ctrl+Shift+1 through 3 to cascade or arrange windows vertically and horizontally
Skrommel
;ArraWin.ahk
; Press Ctrl+Shift+1 through 3 to cascade or arrange windows vertically and horizontally
;Skrommel @ 2008
;Stolen from SKAN at http://www.autohotkey.com/forum/viewtopic.php?p=84807#84807
^+1::DllCall("CascadeWindows",uInt,0,Int,4,Int,0,Int,0,Int,0) ;Cascade windows
^+2::DllCall("TileWindows",uInt,0,Int,0,Int,0,Int,0,Int,0) ;Tile windows vertically
^+3::DllCall("TileWindows",uInt,0,Int,1,Int,0,Int,0,Int,0) ;Tile windows horizontally