Migrating reports 6i to Oracle 9i

Hello,
I am currently running an Oracle 8.0.5 Database about 1.2 GigaBytes in size on a Novell 5.1 server.
1) I want to migrate to a Linux Red Hat 8 Server (I know that I have to upgrade to Linus Red Hat Enterprise 3 (ES)) No questions about that.
2) I want to upgrade from a 8.0.5 Database to a 9i database. I have heard there are 3 possible ways of doing this: directly by import/export, going to 8.0.6 then 9i or going to 8i and then 9i. What do you think is best ? and why ?
3) I want to go from a Client/Server architecture with about 8 clients to a Web architecture. I have heard that I would need to purchase iAS (Internet Application Server) in order to manage multiple Forms/Reports request at the same time. What can iAS do that I cannot do with Oracle 8i, Oracle 9i ?
Also, my current Oracle Forms/Reports application uses Parameter Forms and is based on the RUN_PRODUCT builds. Going to 9i with iAS, what kind of modifications should I expect to do to my Oracle Forms/Reports to goto a Web based application ? I have heard that I might have to modify some Report Triggers ?
My Oracle Forms/Reports is developped in Oracle Forms/Reports 6i. Would I need to rewrite my application for Oracle 9i ?
Your feedback is appreciated,
Regards,
PT

Oracle 8i and 9i are the databases, 9iAS is the application server. You need 9iAS or 10gAS to run Forms and Reports in a web environment. It doesn't matter what database version you are using.
Run_product cannot be used in Forms 9i anymore. You will have to rewrite the code to use run_report_object instead.
Using Report parameter forms in a web environment involves a lot of modifications in both Reports and Forms. See:
http://otn.oracle.com/products/forms/pdf/10g/frmrepparamform.pdf
As a start, read the following on OTN:
http://download-west.oracle.com/docs/cd/B12166_01/web/B10469_01/toc.htm

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