C# app to login on website via a login-form

Question

Hello everyone :)

I play this mmorpg on the web called hacker-project.com (no, it's not illegal).

Now i wan't to make a program in C# to help myself in the game. But already on the login i get problems and I really can't figure this one out, used about an hour trying to login in diffrent ways, with no luck :(

Could someone please make a piece of code that'll work?

And if you don't want to make an account there's a test accout you can use (uname:test, pass:test)

Thanks in advance, Sjums