Ok, I'm officially signed up to attend the Guidelines course Oct 29 - Nov 4th. Will provide a report afterwards. Really looking forward to this! I started feeling a pull to attend a couple of weeks ago. When I initially applied the course was full but they moved to location to the bigger building so I was able to get in. TMI is also running a Starlines program in parallel...that one is two course steps up from Guidelines, need to complete Explorer 27 before Starlines. There is a Starlines I and a Starlines II course which is the most advanced. My eventual goal is to complete them all. Patience!
I found online a diagram that references the courses and the various Focus levels that you work with in those courses. Guidelines is the only TMI course to offer direct training in the early stages of obtaining an OBE (although William Buhlman teaches his course on OBE's at TMI a couple of times a year).
Here's a PDF of the diagram showing courses and Focus levels they cover. I think it's a bit dated but captures the essence of things.