Also - as far as press release services - I don't know that I would use them for anything but getting backlinks. I've yet to see anyone on any forum say they made lots of sales from press release services.

As for paying for traffic - I've only paid for PPC briefly and I'm no expert but I do know this - if your free traffic isn't converting, you most likely need to fix your landing page/offer/whatever is wrong, because the paid traffic probably won't convert either.

Do you want to put a link on here to your landing page so we can take a look at it and offer suggestions?