Once you've got the form figured out (control names and ID's, easy enough to see in the code), you could create you own little app that sends appropriate data to the appropriate page (the "action" attribute in the form tag) on the appropriate server, and then sit back and reap the rewards. It'd be a cinch as a web app...I'd have to do some research to create it as a windows form. You'll have to write some code to sift through the returned info, of course (because it'll have all the accompanying html, javascript, etc, extraneous to your purposes), and then tuck the good stuff away in a db, or xml or text file.

At the risk of offering something you probably already know (I excel at stating the obvious!), you might want to include a polite delay between http calls.

Something else you may want to investigate is whether or not the same info is offered in a more remote-access-friendly form, either on the site in question or elsewhere. This specific type of information might not be readily available in such a manner, I don't know. A lot of financial info, for example, is out there, freely accessible in csv or xml form, but the urls are not widely known.

Good luck!