You are asking a hard question here. You need to either hire an attorney or really look at the instructions on the forms. You need other forms if you are going to ask for other benefits for your husband, which I assume you will want. The complete package consists of a lot of information and different documents. So yes - more things have to be submitted!
Are you a US citizen? Did your husband enter the US legally? Is he eligible under 245(i)? Take the time to consult with an experienced immigration attorney to determine the basis of your husband's eligibility and proper path. Good luck.
714-560-0040. The answer provided is general in nature and because not all facts are known, it should not be construed as legal advice. The answer does not create an attorney/client relationship.