Update a record with ADOTABLE

Goodmorning

I have a simpe application with 2 tables in a database in access 2007

If i use an ADOTable and i want not to post a new record but to change one that already exist. How i move to the row to change my record. for example i wrote that but its not right because no changes become

ADOTable1->Active=true;
ADOTable1->Edit();

ADOTable1->FieldValues["CUSTOMER_WATERMETER"]=Edit3->Text;
ADOTable1->FieldValues["CUSTOMER_NAMED"]=Edit4->Text;
ADOTable1->FieldValues["CUSTOMER_SURNAMED"]=Edit5->Text;
ADOTable1->FieldValues["CUSTOMER_FATHERD"]=Edit6->Text;
ADOTable1->FieldValues["CUSTOMER_STATHEROD"]=Edit7->Text;
ADOTable1->FieldValues["CUSTOMER_MOBILED"]=Edit8->Text;
ADOTable1->FieldValues["CUSTOMER_AFMD"]=Edit9->Text;
ADOTable1->FieldValues["CUSTOMER_ADDRESSD"]=Edit10->Text;
ADOTable1->FieldValues["CUSTOMER_CITYD"]=Edit11->Text;
ADOTable1->FieldValues["CUSTOMER_ZIPD"]=Edit12->Text;

ADOTable1->Post();
ADOTable1->Active=false;

I am not sure if Edit is the right code to move on the row that i want to make the change. For example if i want a new one i would use Append and go to a new row. should i use an other component?