Three Tiered Application

Dear gurus,
I am planning to develop server components using "IIS applications" a new feature of vb6 the document says that the script will be generated automatically. I want know how efficient it is and also my architecture is
backend : sql server7
middle tier : will be vb components (IIS Application)
deployed on Site server
front end : html java applets

Also I want to know wethear it is possible to deploy the EJB's on siteserver

Regards,
Bhaskar
[email protected] (personal)
[email protected] (group pl. put "Att. Bhaskar NA" in the subject)