Just a quick note: when you read the DSM IV criteria for a diagnosis, a desire to change one's genitals is not required to be called a transsexual. By definition, therefore, genital configuration has nothing to do with it.
If someone wants to apply criteria to themselves in order to self define then go right ahead but when people start applying their personal standards onto others against their will then you are violating the TOS and spirit of support that this site was created to foster. Please keep this in mind, people.