Jim: This link will give enough information to get started. However you will not find welder quailficatiuon by UT in Section IX. It has been reaffirmed in the 2004 edition and is still current. You will need ASME code case 2326.
http://www.sperkoengineering.com/html/articles/2000%20Addenda.pdf
Regards, Donnie Mann