There are a couple of threads that explain how things work pretty clearly.
http://tfproject.org/tfp/showthread....threadid=21391
and
http://tfproject.org/tfp/showthread....threadid=18373
Basicly just post and have fun.
Read all the notices first.
Become actively involved in the community and things will go well.
Don't worry about PM'ing us for help, that's what we are here for.