Hey everyone. This is driving me nuts. Please help advise me on what you all think this looks like and how bad it might be. Below is a picture link of my mouth. The top right arrow points to a pimple like spot that i've had for quite a while. The lower right arrow is pointing to a darker area that has been concerning me for a while. I have an appointment at my dentist a week from today but I can't wait that long and need some reassurance. Any help, please?

Thanks

Link:

http://img81.imageshack.us/img81/7540/mouthkh9.jpg