I just went through the green card process myself last year, I did it from within the u.s. so not sure where you would send the application, but in every form it is written where to send it. Also when filling for a green card you would send all the forms to one location. This is what you would need to send in I-130, I-485 adjustment of status, I-765 work permit, I-131 traveling papers I-693 medical exam (as of recently you have to send in your medical papers along with your application), I-864 affidavit of support and G-325A for petitioner and for beneficiary spouse.
P.S. you only have to re apply after two years, if you applied for your green card within you first two years of marriage.
Good luck!