Just got the phone a week ago and can't figure out how to work a couple of things.

1) How do I make a conference call? I dialed the first call, put on hold, dialed the next, but it stops here. I can't conference the two (no conference button), nor complete the second call.
2) Is there any way to sync information from an exhange server onto my personal computer NOT on the network? I want to back up all my information.
3) Is anyone experiencing a lag of email delivery when using a Gmail account? How can I resolve this?