Update form from subform

[REDaughdril]

I have a form that has a related pop up from. I have an IF/Then/else statment. I want to up date a field in the orginal form from that if/then/else statement. I can get my IF/Then/Else statement to work on the subform but I can get it to update the orginal form.
I might have a problem with my forms![xxxx]![yyyyy] syntax.

Thanks for the help