Question about FICO scores?

A couple questions please...I just pulled my scores from myFICO. It gave me my equifax and transunion. I went to experians website and pulled my Vantage score. My vantage score was 649 which is rated as a D. How close is this to a FICO? I also noticed that all my GOOD standing loans are not being reported to experian so all i have on there is negative junk. Why do banks not report to all 3? Is there any way I can get my bank to? Just trying to figure out how I can raise my credit on experian. I would eventually like to buy a house in the next 2 years. Thanks! :)