Yes Deeda I'm always surprised at vicars who agree to baptise babies when the parents are clearly only doing it for show and have no intention of becoming part of the regular congregation. The Catholic church would want a commitment to bring the baby up in the faith and the parents would be expected to attend church regularly. It's simple really if you don't want to practice don't go through with the charade of a Christening.
Possibly churlish, but I wouldn't want to go to the party afterwards anyway louisamay, possibly I'd go to the actual Christening then go home, after all that's it, the point of the day, but glad you have sorted it out.