Hey Carrie,
The waiting is frustrating for everyone. We can all relate to how it feels to want to get something done in the transplant world but be thwarted at each turn.
Karol is right. It could and probably should be a lot faster, but if you look at it from the center's perspective, these initial contacts from potential donors are a dime a dozen. Many people will either be eliminated or just stop contacting the center, which to them is the signal that you are no longer interested. The hospital simply will not take the lead on this because they do not want to appear to be pressuring the donor.
What exactly are you waiting on by mail - health questionaire (could it be emailed or faxed to you?) or blood tubes? Do you have a donor coordinator to contact? I would call the hospital in Texas and ask them to resend your mail. Once you send your blood, they will do the intial crossmatch and battery of tests for every disease you can name, and then you should have your results in one to two weeks (crossmatching takes a while, and you will need to have your blood drawn early in the week in order to make sure it gets to them well before the weekend).
After that it gets somewhat easier. You will be assigned your tests, which depend on your personal health history but will certainly include a kidney MRI or CT scan, an EKG, and the gyn tests if you have not had those done in the past year or so. Oh, and my husband (also a future live donor) had to do a creatinine clearance where you collect your urine for 24-hrs and you usually have to store the container in your fridge. He did not need any of the more invasive tests, though.
You can usually get the eval portion - when you meet the doctors and the social worker- over with in a day, but you will have to go to Texas for that. I have found from watching how these hospitals treat my husband that they take him more seriously the further into the eval he gets. My husband started his eval process around the end of May and was cleared medically about a month ago, so it can be just a few months under ideal circumstances. First you need to get that mail from them!
Good luck and hang in there!