Yesterday, my store started to redirect to a 404 page when I click the download button. The payment process works likes it always has. Payments go through paypal, redirects to the correct download page, but customers do not get access to their files.

My wordpress site was hacked about two weeks ago, and some of the php files in zen-cart was also infected, but I got help from my host and everything worked fine again until yesterday.

I don't know what to look for or where to look. Any suggestions or help is very much appreciated!!!