Form attribute editing

Hello, I got a simple question.

Is there any tutorial/document that explains how to parse form data?

I just want to reposition/rescale some elements in a form by hex editing, and I really need to know the "structure".

I write best article about forms:

http://www.vb-decompiler.org/forms_editing.htm

That was the only link I didn't click while navigating the homepage...

Nevermind, thanks