Well, Derple has kindly posted the new offsets, so this won't help for today, but my strategy with finding the level offset is to target myself, then use "et" to dump memory related to my current target.

I note every offset whose hex value corresponds to my level, then target an NPC with a known level (which, thanks to the May patch, all are, since level is show when you /con them), use "et" again, then see which of the offsets I noted earlier now holds the level of the NPC. Usually it's only one, but if it's more than one, just note what those two offsets are, target another NPC and repeat. It's pretty rare that the level offset moves by much, so I usually start looking in the vicinity of the old level offset.

-c