PayPal is notorious for being hard to interface with. People install eStore packages just because they don’t want to deal with it! But I finally found a way to access the data fairly reliably.
If you are trying to use PayPal for your web site payments and want as simple an interface as possible, I highly recommend THIS tutorial. All the others I tried didn’t work. This one was written in 2010 and uses cURL, and remarkably, it actually works. Readmore..