Hello, I'm a Vietnamese passport holder living in America.

I am applying for visa to travel to Hong kong as tourist.
I did print out form 1003A and fill it out, is this the right form I should summit?
Include with the application, I also have:
1/ A copy of air plane ticket itinerary in and out of HK.
2/ A copy of my passport information page.
3 A copy of bank statement.
Is there anything I may need?
And I currently live in Lubbock, Texas. Where should I send my paper work to?
Thank you for your time.