upgrading from inn 2.2.1 -> 2.4.1

[Jason]

> Have you enabled and rebuilt overview?  I don't think the overview
> written by 2.2 is usable by 2.4.
> 
> Make sure overview is enabled in inn.conf and run "makehistory -FOx"
> to recreate overview from your spool.
so I wiped out my /local/news and started over. but with inn 2.2.1
I copied everything over from the old server and ran  do makehistory -o
and everything was fine and dandy. could see all newsgroups and everything in them.

I tried the upgrade process as detailed in the docs
make upgrade and the stuff in the section 
"Upgrading from 2.2 to 2.3 in the docs.
I populated my innd.conf with an overview of
ovmethod: tradindexed

 and still I have lots of "holes" in my newsgroups. i.e. the articles for a lot of the 
newsgroups are just plain missing.
I tried the makehistory -FOx afterwards but that still didnt help..

any ideas or am i stuck at 2.2.1?

regards,
Jason