Make your advertising 'focused'!
Wherever you're currently advertising, make sure that it is in a place or an a site that is RELEVANT to the people who are likely to be interested in SFI.
Give more thought to the type of people who will be reading your adverts.
Think of ONE place where people who would be interested in SFI and TripleClicks would go, be it a place or a website. Really think about it. Post your adverts there!