Well what you should do is either expand the form: u can use the width and height propeties.
To do this you should know the size in width and height of your labels.
Depending on the number of labels you have you can get both.
so for example your form height is 10, and each label height is 2:
you know that you can fit 5 labels. If you want to insert another label, you will have to increase the height of your form.
so what you will do will look like this :
Sub IncreaseFormHeight ()
Form.height =form.height + 2
end sub
you will have to call this sub everytime you want to add a label.
Now to prevent the form from increasing with the 1st label, you jsut do a check on the the label number.
So suppose you are at label(I), you add a condition
If I > 5 then call IncreaseFormHeight
You can do the same with width