学习hibernate时的问题

一.我用sql server 2000建了一个数据库FileManagement并在其中建表client, 开发工具是Myeclipse创建了web工程并通过add hibernate compablities生成了hibernate.cfg.xml文件，内容是这样的：
  <hibernate-configuration>    <session-factory>
        <property name="connection.url">jdbc:odbc:FileManagement</property>
        <property name="dialect">org.hibernate.dialect.SQLServerDialect</property>
        <property name="myeclipse.connection.profile">aaaa</property>
        <property name="connection.driver_class">sun.jdbc.odbc.JdbcOdbcDriver</property>
    
    <session-factory>  </hibernate-configuration> 二.右击FileManagement中的client表并执行hibernate reverse engineering是发生错误：an internal error occurred during "generating artifacts "。查看.log文件内容如下：
!SESSION 2007-03-15 22:14:47.187 -----------------------------------------------
eclipse.buildId=M20060629-1905
java.version=1.5.0_10
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=zh_CN
Command-line arguments:  -os win32 -ws win32 -arch x86!ENTRY org.eclipse.wst.internet.cache 1 0 2007-03-15 22:15:12.062
!MESSAGE wtp.autotest.noninteractive is set. Licenses dialogs will not be displayed.!ENTRY org.eclipse.core.jobs 4 2 2007-03-15 22:18:19.031
!MESSAGE An internal error occurred during: "Generating Artifacts".
!STACK 0
org.hibernate.exception.GenericJDBCException: Could not get list of tables from database. Probably a JDBC driver problem. 
Configured schema:dbo
Configured catalog:FileManagement
  <SQLException while getting schemas>
  <SQLException while getting catalogs> at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:91)
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:79)
at org.hibernate.cfg.reveng.dialect.JDBCMetaDataDialect$1.handleSQLException(JDBCMetaDataDialect.java:86)
at org.hibernate.cfg.reveng.dialect.ResultSetIterator.next(ResultSetIterator.java:50)
at org.hibernate.cfg.reveng.JDBCReader.processTables(JDBCReader.java:400)
at org.hibernate.cfg.reveng.JDBCReader.readDatabaseSchema(JDBCReader.java:65)
at com.genuitec.eclipse.hibernate.wizards.MEJDBCMetaDataConfiguration$1.readDatabaseSchema(MEJDBCMetaDataConfiguration.java:102)
at org.hibernate.cfg.JDBCBinder.readFromDatabase(JDBCBinder.java:87)
at com.genuitec.eclipse.hibernate.wizards.MEJDBCMetaDataConfiguration.readFromJDBC(MEJDBCMetaDataConfiguration.java:134)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob$6.execute(GenerateArtifactsJob.java:514)
at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:35)
at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:70)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob.buildConfiguration(GenerateArtifactsJob.java:509)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob.run(GenerateArtifactsJob.java:293)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)
Caused by: java.sql.SQLException: [Microsoft][ODBC SQL Server Driver]无效的描述符索引
at sun.jdbc.odbc.JdbcOdbc.createSQLException(Unknown Source)
at sun.jdbc.odbc.JdbcOdbc.standardError(Unknown Source)
at sun.jdbc.odbc.JdbcOdbc.SQLGetDataString(Unknown Source)
at sun.jdbc.odbc.JdbcOdbcResultSet.getDataString(Unknown Source)
at sun.jdbc.odbc.JdbcOdbcResultSet.getString(Unknown Source)
at sun.jdbc.odbc.JdbcOdbcResultSet.getString(Unknown Source)
at org.hibernate.cfg.reveng.dialect.JDBCMetaDataDialect.putTablePart(JDBCMetaDataDialect.java:203)
at org.hibernate.cfg.reveng.dialect.JDBCMetaDataDialect.access$000(JDBCMetaDataDialect.java:25)
at org.hibernate.cfg.reveng.dialect.JDBCMetaDataDialect$1.convertRow(JDBCMetaDataDialect.java:77)
at org.hibernate.cfg.reveng.dialect.ResultSetIterator.next(ResultSetIterator.java:47)
... 11 more
请教错在何处，如何修改？