If you have an attorney, you need to rely on the advice that you receive from that attorney.  DUI law and the implied consent law are complex, so if you do not understand you need to let your attorney know and ask them to explain it again. 

The short answer is that you are required to attend ADSAP in two circumstances: 1) if you are convicted of DUI; or 2) if you refused the datamaster or blew greater than a .15 and you either did not request an administrative hearing within 30 days or you lost your administrative hearing.  Keep in mind that the criminal case (DUI) is separate and distinct from the administrative proceeding under the implied consent law.  

You do not have to carry SR-22 insurance if you lost the administrative hearing, only if you are convicted of the DUI.