[AccessD] Moving to Access 2007 - Here we go...

Well, it had to happen sometime. Looks like I have to load and start using
Access 2007  :(

I need some quick answers. Maybe there is a white paper?

1) Will Access 2007 uninstall any older versions I have loaded?
2) Did they get rid of the system.mdw security data model. If so, if there
is a new security model, is it any good?
3) What's the biggest caveat so far with Access 2007
4) Can it seamlessly run previous versions (2000 - thru 2003).
5) Will I have to convert my current database library (mda) to 2007 version,
or will it still work without a conversion.

Thanks!

John Skolits