Insert Row to ResultSet problem....java.sql.SQLException: No Primary Keys

I'm migrating data from a poorly modeled MS Access 2000 DB to newly
developed PosgreSQL 7.4 DB.  I'm connecting to the Access database
using a jdbc-odbc bridge driver.  I'm connectin the postgreSQL DB
using the pg74jdbc3.jar driver.

public static void main(String[] args) {
  String[] schools;        // Array of SchoolCodes

  MigrationUtil migr = new MigrationUtil();
  // Connect to the Access Database
  migr.connectToAccess("Access", "C:\\Working\\Access\\Access.mdb");
  // Connect to the PostgreSQL Database
  migr.connectToPostgreSQL("PostgreSQL_Test", "cimTux.cim.internal",
"5432");
  // Get Schools List
  System.out.println("Getting List of Schools from access.mdb");
  schools = migr.resultSetToStringArray(migr.queryStatement(migr.ODBCConnection,
"SELECT ftno FROM tblmst WHERE ftcode ='SC'"));
  // Start the Main Loop
  for(int i = 0; i < schools.length; i++)
  {
    String currentSchool = schools[i];        // current School Code
    ResultSet rs = null;            // reusable ResultSet variable
    String sql = null;                // reusable SQL Statement String
    int schoolContactID = 0;            // current School ContactID
    int schoolAddressID = 0;            // current School AddressID
    int eduOrgID = 0;                // current EduOrganization ID
    System.out.println("Current School: " + currentSchool);
    // Get School information
    sql = "SELECT FtDes, LenderAddress1, LenderCity, LenderState,
LenderZip, " + "LenderAddress2, fsch_code, EINNo FROM tblmst WHERE
ftcode = 'SC' AND ftno = '" + currentSchool + "';";
    rs = migr.queryStatement(migr.ODBCConnection, sql);
    // Update school address information
    System.out.println("Migrating School Address Info");
    try{
        ResultSet addressInfo = null;        // ResultSet for Address Info
    sql = "SELECT * FROM address;";
    addressInfo = migr.queryStatement(migr.postgreSQLConnection, sql);
addressInfo.moveToInsertRow();
..... this is where I get this exception
java.sql.SQLException: No Primary Keys
    at org.postgresql.jdbc2.AbstractJdbc2ResultSet.isUpdateable(AbstractJdbc2ResultSet.java:1363)
    at org.postgresql.jdbc2.AbstractJdbc2ResultSet.moveToInsertRow(AbstractJdbc2ResultSet.java:697)
    at com.cimconsultants.EFRMigration.MigrationUtil.main(MigrationUtil.java:62)

Here is the queryStatement(Connection, String) Method

private ResultSet queryStatement(Connection con, String SQLStatement)
{
  ResultSet rs = null;
  try {
    System.out.println("Query: " + SQLStatement);
    Statement stmt =
con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_UPDATABLE);
    rs = stmt.executeQuery(SQLStatement);
  }catch(SQLException ex) {
    System.out.println("Query SQL Exception");
    ex.printStackTrace();
    System.exit(0);
  }
  return rs;
}

I'm experienced with Java, but very new to JDBC and PostgreSQL.  I'm
using the JDK 1.4, PostgreSQL 7.4, and the binary pg74jdbc3.jar
driver.

Thanks in advance,

Jason L. van Brackel