Do you hold some food before you hold her? There is alot of ways to do it, you can refer back to other posts. My cousin have winter hamster back in my country and he likes to bites his cage and anything that moves around him.. And until now, my cousin not able to tame her (still can't figure out why) I remember few advice from other post..
Try to rub some of his bedding before hold him, a same scent of the bedding might make him think that you're not a threat for him. a make him realize that you are not edible.
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Crazy Bite!!) or try to read this
http://pic3.piczo.com/custardhamstery/?g=22143831
I don't remember where I read this.. But, I remember putting a hamster inside one room for one day (with water and food) and then you put a tissue inside the cage in next day (of course the tissue paper will have a scent of you) and after awhile try to tame Monkey again... if it failed just do all over again. Just make sure he smells only your scent.
Sorry if my explanation abit weird... Anyway, good luck taming him again.