This page contains some resources for getting started with Tile, Lua and TIBasic.
TIBasic wiki: http://tibasic.wikia.com/wiki/
Official Lua website: http://www.lua.org/
Text file to 8XP exporter: http://ti.zewaren.net/en/83p-creator.php
Documentation on Tile and example programs can be found in the following location:
Windows: C:\Program Files\Tile
Mac: Download the source files
Source: Root of the tar file