I have some ideas.
1) Are you hungry in the morning? If not, then wait until you are truly hungry or noon, whichever is earlier, to eat. If you are hungry in the morning, then listen to your body and eat - maybe a fruit smoothie. The same is true all day, eat only when hungry.
2) Are you grazing all day? Some new raw foodists make the mistake of grazing all day. Our body needs time to digest the previous meal or snack. Try to wait a minimum of 2 hours between meals/snacks.
3) Are you overdoing it on nuts? Try to limit yourself to one or 2 handful of nuts a day and 1 avocado a day. If you are already eating less than this, don't increase it. Presoaking nuts usually improves the digestion of them. I think the black, ripe, squishy avocados are easier to digest also.
4) Are you getting any exercise? 10 minutes of jumping on a mini-trampoline or 30 minutes of walking 5 days out of 7 should help.
5) Eat more of the simpler raw foods and save the gourmet raw foods for an occasional treat.
Karen Knowler has an article on weight loss here
http://karenknowler.typepad.com/living_in_the_raw/2007/04/reader_question.html. Other than that, I would suggest buying Angela Stokes book "How to go Raw for Weight Loss", that should help tremendously.
Good luck and keep at it, it works!