>Hi,
>I used to research on there, but some info is not updated

Hi John,

Sorry I did not answer your Q previously b'cos I was caught up with some of the project works. You can subscribe to newsgroup at www.promatrix.com which is very active. The guys in there are superb. There are threads to the Q you have asked me. You can asked a question and the gurus will particpate to answer you r Qs promptly. Have a look there. HTH....