Crystal Reports selection and viewing

Now I have code like this:

Dim sSelection As String
sSelection = " {Planning.Week} = 44"
WeekReport1.SelectionFormula = sSelection
WeekReport1.PrintReport

I'm new to Crystal reports, so I've got 4 (i hope simple) questions:

1. How can I make a selection like Planning.Week between 44 AND 48 or something like that? Can I use SQL for this?
2. How can I maximize the report that is being showed by PrintReport?
3. How can I show a selected report in the crystal report viewer?
4. How can I use a query as a source for a crystal report, and then use parameters passed from VB to this report?

I have moved this thread into the Reporting forum as you'll probably get a better response from here

Can someone please answer one of the questions? I'm really stuck.:rolleyes: