The liver was a match.
Becca went in to surgery around 7pm CDT, and should be out of surgery and transferred to the ICU within the next hour or so.
She still needs all the prayers and healing thoughts she can get, as she's not out of the woods yet, but we're all extremely hopeful!
UPDATE 8:33am CDT 06/15/11: She is awake and feeling good this morning! :)