In my opinion the BIGGEST problem is, that you need to knwo, in which order you have to install the extensions.
I got nearly all WA extensions, and there ist, form tool kit, security assist AND the form builder that got validation included.
the thing is, I need to bought the tool kit, to get the captcha thing.
When you installt SA204 first and then data assist, you have the OLD UI. when you install the Form tool kit, then suddenly the new UI is there but the unique data validation is missing.
thats, so,aaarg, i cant tell.
maybe, you put out an order, what to installt first. this will save lots off time.