Hopefully you got it sorted, but maybe you need the .39 beta 4 version. In .37 there was some bugs with updating, or maybe it was .38, I don't remember, I think .38 actually. I think it was fixed on the server side, but anyone on all my servers I only run the latest beta now days and have since they started offering it and have had zero issues. I have had people report stuff with .38 having this or that, but there are multiple betas that fixed some of that.
anyway
You can download scrapebox from here:
http://www.scrapebox.com/payment-received
Unzip it to a folder on your desktop or in your documents folder.
Alternatively if the above link does not work for some reason, you can always download the latest version, including beta versions, directly from here:
https://ssdnet.biz/