any disciple of Christ can partake in communion. it is this type of rule that Christ nailed to the cross.
so remember to keep the sabbath day holy unto god.
No, because he has been said to be raised in a evangelical church because of baptism but hasn't been confirmed that he is in fact himself a evangelical christian, there for the "holy" part of the holy Communion is out of the picture.
It would be wise to ask the priest at your local Anglican Church, but from memory, I don't think that one can unless confirmed. I tried go ogling this question, but couldn't get a cast - iron answer!