Considering the multiple years with no updates I think it's safe to assume no. Notice how the OP doesn't even have the latest version? Of course, if anybody wanted to continue it, the source code is still around.
Try Eval("Input" & $i) ... but it would be much cleaner to make an array to store the inputs ids - this also allows the creation of the 11 inputs in the For loop Local $aInputs[11]
For $i = 0 to 10
$aInputs[$i] = GUICtrlCreateInput("", 31, ($i*32)+24, 489, 21)
GUICtrlSendMsg($aInputs[$i], $EM_SETCUEBANNER, True, "F1")
Next