Use pixies suggestion, if you don't want to use _direct.exe
..Unless im missing something, not that I see a reason why not.
If you want to submit this information to the website and login that way .
You can create another form, add a browser to it.
Then do this ( I don't know if this is out there on mpgh.net yet, if it isn't someone feel free to make a tut out of it, may be helpful for anything really)
Code:
Imports System.Web ' (this is very important, make sure you import 'system.web or you won't be able to use the getelementbyid, This goes above 'Public Class Form1 (or whatever you called your form)
'Once you have imported that information You can now use GetElementsByID' 'to post data to a site.
'This does work as it uses the existing ID's ( You can use Google Development 'tools and Inspect element to determin a ID or view the source)
WebBrowser.Document.getElementById("tbID").value = textbox1.text
WebBrowser.Document.getElementById("tbPass").value = texbox2.text
WebBrowser.Document.getelementbyid("Login").focus()
WebBrowser.Document.getelementbyid("Login").click()
Should work