No version of BASIC I'm familiar requires tabs for any command. Have you looked through existing sample projects and real projects (from the project listing) with script? I'd think that would give you a pretty good idea of what VBScript code looks like. Also, take a look through the "Scripting Docutorial" in the help file. Do those help any?
The basics: VBScript is similar to Visial Basic without a user interface (forms), without data types, and without a compiler.