Hi gherkdrfc,
the first thing you need to do is to register in TOM, the address for that is :-
http://www.sopl.info/sopl/tom10/main.php
as we had a change of league president and staff are being worked out for the league, there has been a short delay until they work things out, I think that there is a window in week 12 where people can upload their horses into TOM that is the above address I have given you, hopefully you know how to use the CK in your game because thats what you need to do before you upload your horses into TOM but I am not to sure what's the rating should be before you upload your horses as you need to change your horses ratings before you upload them, hopefully someone from staff will add something more in here for you to do with the finer details.
If you have anymore question about any other thing that you are not to sure about please don't hesitate to post in this thread and I am sure someone will help you out as all the people on here are helpful.