hi there, hope you don't mind me responding, but as i am a vicar, i thought i could offer a little insight into the rules and regulations about who can get Baptised/Christened where...
in the Church of England the 'rules' for baptism aren't quite the same as for marriage, so it is a little bit more flexible (or not)... depending on the priest/ vicar. Generally, if you live in the parish, all is fine. if you don't live in the parish, but habitually/ regularly attend worship there, then that is also fine. If you live outside the parish but are on the electoral roll, this is also fine, but adding to this last bit, different churches place different conditions on joining the electoral roll, and a typical condition is 6 monthe habitual worship.
having said all this though, it is up to the priest. some churches have an open baptism policy which means thy will baptise anyone who asks, no conditions asked. others want to see real commitment to what you are undertaking on behalf of the child, and may ask you to attend preparation classes.
essentially. Baptism is not a legal thing, so there aren't any set 'rules', but just talk to the clergy, they will be delighted to help.
it is lovely to see that you want to continue worshipping at a church which suits you, and i hope (and pray - tee hee!) that you find the right place for you. All too often, we see people who turn up for the baptism, and then never come back to church again...
hope this is helpful
God Bless
peapoderooni (Rev'd.)