What do we need to do now as far as the next steps are concerned after an I130 was approved?

Generally, an approval of a marriage-based Form I-130 Petition for Relative Alien remains valid without any additional step needed, although issues raised in that application indeed could be re-examined by the USCIS at a subsequent Form I-485 Adjustment of Status application interview. Significant additional information is needed in order to analyze your husband's situation and advise about next steps. For example, are you a U.S. citizen? Are you a Permanent Resident? What has been your husband's immigration visa situation since the time he first entered the country? Etc. It would be wise for you and your husband to confer with an immigration attorney who, after learning all of the relevant information, could provide advice about immigration-related eligibilities, options and strategies, and could offer legal representation for the often complex application process.