I agree with Jeff... have you contacted the person you bought them from? You spent a lot of money on an investment, and are now spending---I'm sure---loads more money on keeping that investment alive. If he came to you in this condition, the original owner needs to be contacted and made aware... he/she might also be a good resource to find out if this snake is a habitual non-eater, ever had problems with RI, etc.
If this breeder sold you an animal with mouth rot.... that's so not cool!
---EDIT: LOL, posted after you! But you might want to see if Becky---SatanicIntention on here---can take a look at the x-rays.