Thats a great link thanks. It amazes me how you find things.
There are two parts that really brought home the point to me and that was in the first letter:
"Therefore the Holy See's recommendation is to retain as far as possible the custom of having only boys as servers. But it leaves to the bishop the choice of permitting women and girls for a good reason and to the pastor of each parish the decision as to whether to act on the bishop's permission."
and in the second (follow up):
"Getting back to our subject, while the rights enjoyed by every Catholic are spelled out clearly by canon law, and include among other entitlements a right to the sacraments (see Canon 214), which is certainly not political, this fact has little to do with the question of a "right" to serve at the altar.
Serving at Mass, unlike the Catholic's right to assist at Mass and receive Communion, is a privilege and in some cases a vocation. But it can never be called a right. Therefore, I repeat that no one has a right to do so and to frame the question in these terms is to use political categories to seek to demand what can only be humbly accepted."