If you are looking for the best proxy harvester I can strongly advise No Hands Proxies. It is incredibly easy to setup, has lots of great "how-to" videos, is currently able to get hundreds of usable proxies and is obviously very easy to use with No Hands SEO.
As so many people are contacting me to ask how to use proxy harvesting tools with No Hands SEO I thought I would write this quick guide:
How to setup your proxy harvester app:
1) Check for usability with your chosen search engine (in No Hands Proxies just choose Google)
2) Set it to output the proxies to a file (preferably in your My Documents folder)
If you are using No Hands Proxies that is all you need to do, skip to the next section to see how to setup No Hands SEO to use these proxies.
3) *Only if NOT using No Hands Proxies* Set it to harvest no more than 50-100 working proxies before outputting to file (anything more will result in a huge delay between fresh proxies being sent to NHSEO) (this does not apply to No Hands Proxies due to the way it handles re-checking of proxies)
4) *Only if NOT using No Hands Proxies* Set the delay between searching to as short a time as possible so you get the freshest proxies possible for your setup
Now that is done you will want to go into NHSEO:
1) Go to Settings=>Proxy tab
2) Check the "Use Proxies" checkbox and the boxes next to the jobs that you want to use the proxies for.
3) Click the Browse button and select your proxy file
4) Check the "Continually Update Searching Proxies From File?" box
5) Set "Load From File Delay(ms)" option to anywhere from 60,000 (1minutes) to 300,000 (5minutes)
6) Press Save
Done.