I don't know the answer to the second question, but as I understand it, a confession of faith is rather lengthy and more systematic in the theology whereas a creed is usually short and doesn't go into much detail.

Examples: WCF, Heidelburg confessions, etc. vs. Apostles creed, Nicene creed

__________________
J Baldwin
Keowee Presbyterian Church, PCA
Pickens, SC
“You shall love the Lord your God with all your heart and with all your soul and with all your strength and with all your mind, and your neighbor as yourself.” Luke 10:27

Check Out My Blog: http://reflectjoy.blogspot.com/