Webscrape, Timed Macro and Archiving Data

Hello,

I have a excel vba problem. I need to archive the data from this link:
http://ets.aeso.ca/ets_web/ip/Market...ReportServlet?

I need it to run and archive automatically, every hour. And when it archives, I need it to add an extra column that states the hour and day that it archived in. The problem i'm running into is how to get the data to archive, that is to propogate to the bottom of the excel rows dynamically, as each hour passes? Thanks for any help.

Chris