How do I use variables in a SQL statement in vb.net 2008

[tgf-47]

I got this in my SQL statement. I "BOLDED" the problem.

SELECT OrderID, CustomerID, EmployeeID, OrderDate, RequiredDate, ShippedDate, ShipVia, Freight, ShipName, ShipAddress, ShipCity, ShipRegion, ShipPostalCode, ShipCountry FROM Orders 
WHERE CustomerID = @CustomerID

I saw a video tutorial on the internet, http://msdn.microsoft.com/en-us/vbasic/cc138242.aspx where they are doing this. The example that I inserted is actually from the tutoral. For some reason it wont work on my side.

How do I use variables in a SQL statement?