Code:
SystemUtil.Run"C:\Program Files\Internet Explorer\iexplore.exe"
Browser("CreationTime:=0").Navigate"http://www.adisocial.com/"
Browser("CreationTime:=0").Sync
B().P().WebElement("name:=Username,innertext=user").set abcd
B().P().Webelement("name:=Password").setSecure 123456
B().P().WebButton("name:=SignIn").click
i gave a sample for webelement you need to look in object spy and write down the same in the code what u find for web element username,Password,Login/sign in button