I hope you searched, there are a couple of rookie threads out there. But there's a pretty nice web site out there at
http://www.first-codex.net which has some nice articles about programming. The good part is you get to use gotos and labels in your code just like in TI-BASIC.
Labels are labels in the code which... uh, label a section. You can jump around parts of your program by using the goto command. If you tell the program to go to a section marked by a label that doesn't exist, the editor screams at you.