I know many here are Christians and have children.  Myspace is way too nasty for unsafe for kids and as an adult I just don't like Myspace.   
http://www.shoutlife.com is a free Christian owned and operated social networking / community website.   
I met with the owners this summer and found them to be very nice guys.  The whole thing is pretty much family owned and operated. (a couple of brothers, brother-in-law and their spouses.)  They monitor all pictures and posts.     
Give them a shout.