There is one more conditional statement that can be very useful: CASE. Go to this webpage – http://wiki.mcneel.com/developer/vbsconditional – and look at the last example.
Looping is also worth learning about. In particular, you should look at three types of loops: DO, DO … WHILE, DO …UNTIL.
Check them out – http://wiki.mcneel.com/developer/vbslooping