JSP using Web AS

Hello Friends,

I am really intrested to know if we can do JSP using Web AS, I am using Web AS 6.20, but I have heard or read somewhere that from Web AS 6.40, we can do JSP programming in the same fashion as BSP programming ? please correct me !

Secondly if some one known any resource regarding JSP VS BSP please point out the link !

I was searching and came accross the following presentation

http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/documents/a1-8-4/j2ee for abap programmers webinar.pdf

From slides I come to know that, using Web AS the following technologies can be use vice-versa!

JSP ~ BSP

Servlet ~ BSP controller

EJB ~ BAPI's

It would be nice if some one let me know the relation between the above technologies !

Many thanks!

Marek