Here is the download

Code:

http://uploadmirrors.com/download/BQWFD0PO/Quickfire_Stumbler_v1.2.exe
http://www.mediafire.com/?rau7raqdfugzyhu

Virustotal

Code:

https://www.virustotal.com/file/73ab7e5b445e5960ecc7fb8ba5c31be81216c021b31fa78d2f1d62498603247d/analysis/1351952640/

SHA256: 73ab7e5b445e5960ecc7fb8ba5c31be81216c021b31fa78d2f1d62498603247d
File name: Quickfire Stumbler v1.2.exe
Detection ratio: 2 / 44
Analysis date: 2012-11-03 1400 UTC ( 0 minutes ago )
False Detection.
You need a key which you can get here

Code:

http://www.freecoup.com/togift/thanks.php

or use this
71138450

I am not affiliated with this product
Checked DNS list. it was not listed there

Requires
StumbleUpon accounts
Proxies
Captchas

Tested on WIN7 64bit
Tutorial here

Code:

http://youtu.be/QTW7X7BB__w

Enjoy!