Sample code for POST + cookie?

Hello,

I've been googling for some VB.Net code to authenticate to a web server with the POST method, receive a session ID in a cookie, and then send this cookie along with all GET queries... but all I found is half-working code or C# code, ie. difficult to use for a VB.Net newbie.

Would someone have some code handy or some pointer that I could use to get started?

Thank you.