There are a few ways.  Select all the objects, right click, chose align (left or right).  Make a vertical guideline on the ruler and snap all the text boxes to it.  Right click on a box and choose size and position.  Set all the text boxes to the same X: value.

Do not know of a way to easily space equally.  I have done it with the Size and Position values, but it is a slow and tedious way.