I was ableto locate some of the answers to my questions. I figured I post them here in case anyone finds themselves in my shoes some day.
1. It is an IB5 transmission. You can actually use the site below to determine that:
I also called FORD and gave them my VIN# and they said I have the XS4Z-7002-DE
2. Before taking the tranny out I figure I'll pull the check engine light code to see if it has anythign to do with the shift solenoid.
I'll probably check the fluid to make sure everything looks good.
3. Looks like its the XS4Z-7002-DE (But not sure if others can be used).
4. Still wondering???? :)