You will have to get use to the terms. Unlike old asp, asp.net is not a very restricted version of
VB(vbscript). asp.net uses most of the classes that
vb.net(or any other language like C#) uses with the changes mainly on the classes for the Forms and elements. Makes it nice since you can easily move code back and forth from
vb to aspx projects with little to no problems. Visual Studio.net is simply their tool for working with the .net framework. Hopefully you are student, then you can hopefully get a pretty cheap copy of it. If not, its a pretty pricy tool.
Go to that site I posted. W3schools does a good job explaining it all.