Please clear up tabstops for me

Right now I have a form I created that has two columns of input text boxes. When I go to fill in some of the boxes and hit TAB to go to the next box it jumps to the next column to a random box. I say random although it is the same order of boxes every time so its not completely random. I am just trying to figure out how to make the TAB’s go in order from one column then to the next. I don’t understand the HELP file for this so I need the For Dummies version of this.

Also, let me ask you if this may be the problem. I created the first column, then just selected them all and copy/paste. I am assuming this is what has caused this. Which makes sense to me. However, I would like to fix it with script rather than having to create the boxes over. If I have to I have to. Not a big deal…but I would like to learn how to do it the ‘right’ way.

Thanks for any help you can give me. Appreciate it.