Logging in a website with Macros

Hello, and again, let me first thank you for spending some time on this.

I'm trying to automate some webscraping on a website that requires a login, and was wondering how I would do so using Macros with a specific username password somewhere in the spreadsheet, lets say B2, and C2 respectively.

The website I'm trying to login is this; http://underground.chacha.com/account/

I think I have most of the scraping figured out; its just the log-in for now.

Any help would be appreciated!

Thank you.