How do I get VB to change an option on a pulldown menu on a website, then click a link?

I am writing a macro. i need it to change a drop down menu on a website, then click a button. Can someone help me do this?How do I get VB to change an option on a pulldown menu on a website, then click a link?
Assuming your browser is IE, you need to look at the IE object to determine what's loaded in it, then find out what the pulldown menu box is named, set that box to the value of whichever option you want from the pulldown, then still in that object, select the submit button and force it to be clicked. Clear as mud eh. :)