Netware SP8 update

I am about to update our main server from Netware SP6 to SP8.

The Cool solutions write-up is great. But I have questions. There is a list of post updates. Which of the updates do I really need to do?

I know if the update is marked mandatory I must do it, but what about the other updates that are only recomended? The Java, TSAup24 and MM updates are only recomended.

The server being updated is running Zen 7, Imanager and Ifolder. IPrint will be added after I update to SP8. The server at Edir 8.7.9 (we can not move to 8.8.X until I get rid of the Netware 5.1 servers)

I want the server to work, but I do not want to look for problems by fixing what is not broken.

thanks
Phil J