Just a quick update. Figured out how to use paypal sandbox. But I do have a new question.
On my first site, I have a combo product and I get to the thank you page without incident. Now the combo product is 3 downloads all together. Ok. I start the first download and it downloading. So far so good. If I select the second product to download while I am downloading the first, when the first finishes, it thows an error, invalid download link.
To me that is a bit of a problem. Also, I can only download one thing from the page at a time. Is that my desktop or the software limiting downloads? I can download up to three things at once with IE, so don’t know what’s going on here.