I was hoping to get the compiled files for this plugin so I could just add them to my site and use it. I don't know enough about Visual Studio/Web Developer to do this myself.
mj1856 said he would try get them up this weekend, but if you have some ready that would be great...!
Be careful not to set that too much lower. When dealing with third party web services, it's a matter of respect that you don't bombard them. Caching is a good way to handle that. Unless you are trading frequently and in large volumes, 5 minutes isn't really enough time to make much difference in the price.
I have just had a look in the database table "PreciousMetalsQuote" and I only see this updating each time one of the page's is visited, so I thought it just pulled an update then.
Yes. It will update the table during the page load. But if it has been done already within the last 5 minutes for the same type of metal, it will just use that data instead of requesting a new quote.
No - you won't see updates every 5 minutes. If there's nobody on your site, then there's no need to pull pricing. The intent is not to clone the entire datasource for historical pricing - for that, you would need to contract with the vendor (Kitco) directly.