Had a mammogram and was told that I have two masses on my right side and radiologist said I need more tests as my test I had in 2010 showed changes?

Follow the advice. Since the mammography results are not available for review, following the advice of your radiologist would be the best choice. Most changes, but not all, are benign.
Not exactly sure. Of what the question is asking, but if there are abnormalities on screening mammo requiring additional imaging, you should have it done. If the lesions remain suspicious, you will likely need a needle biopsy.
Follow their advice. Not sure what to make of that? Sounds like you need more tests such as an ultrasound or perhaps needle localization biopsy.