one page check out fields arrangment issue

[SunnySam510]

hello i want to arrange   onepage checkout form for shipping information like

1. Email Address* (?)
2. First Name*
3. Last Name*
4. Company
5. Street Address*
6. Zip/Postal Code*   
7. City*
8. Country* 
9. State/Province*
10. Phone Number* (?)

help me