Replace old ListTables (etc.) code with collection based code

Microsoft Access 1.x shipped with some List methods that have better equivalents in Visual Basic 3.0 and Microsoft Access 2.0. In addition to the syntax being shorter, using the new syntax will often be quicker, as illustrated by the sample code. See the Access 2.0 help topic "Converting Code" for examples on how to change this old code to use the new syntax.