Spring Framework, level 3, spring data support, lesson #37 -using jdbc without spring

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i get the following error when i try to run JDBCDemo in my JDBCDaoImpl class.....;

Exception in thread "main" java.lang.Error: Unresolved compilation problems:
    Type mismatch: cannot convert from java.sql.PreparedStatement to org.apache.derby.client.am.PreparedStatement
    Resultset cannot be resolved to a type
    conn cannot be resolved

    at org.glover.javabrains.dao.JdbcDaoImpl.getCircle(JdbcDaoImpl.java:21)
    at org.glover.javabrains.JdbcDemo.main(JdbcDemo.java:11)

, can anyone help?.....I love Koushik, he's really the best, however, i feel i've set up my software incorrectly, or i'm missing a jar.....


Thanks,

Bobby