Paypal Download still not functioning right

[Hambowned]

So far, I've CHMODED the pub and download folders to 777, tried to download...and I still download an extremely small file all the time, and when I do download it, its non-functioning, I get an error message.

 

Starting to get my wits end here.

 

Try it out:

 

My Site

[Hambowned]

Now im getting a "Page not found" message, when I go to the download link