basically he is saying.
1. First make a Category in in your forums manager, dont make a forum make a catergory ok?
2. Inside the same catergory put in forums and more forums as much as you like.
3. Now have a link on your website which is linking to your first catergory we make in step 1, ok? when people click on link they will see your number 1 catergory with different forums.
Now you want another forum another page like vb.org yes?
do the same steps as above ^^ but make the catergory order 2, make sure your second catergory order no. is different to your first catergory id ok? then link this also.
Then you have two different forums

and one license