>maxlength on both textboxes are 0 so its not that ut how could i do this? form2.text1.value = form2.text1.text + form1.text1.text
>.......should this work? is there any syntax errors in that?

It should work.
I suggest you just open the Watch window put there

_screen.activeform.text1.value
_screen.activeform.text1.text
_screen.activeform.text2.value
_screen.activeform.text2.text

then run your form and see what is going on in Watch window (for simplicity I use textboxes on one form)