What the title says.
Atleast I dont want to have all that stupid vanilla leveling crowding all around me.

If you know any other good mods for Shivering Isles mods which you like you can recommend them too.

Thank you for your time.

Unfortunately.. OOO doesn't support SI(yet).

Frans however does. http://www.gamesas.com/index.php?/topic/921906-francescos-leveled-creature-item-mod/

Btw I don't completely understand how frans handles leveled lists, but I know one thing, its mobs don't cap at lvl30 .

But I guess that it is impossible to install the SI version of that mod separetely?

I don't think so.

If you use MMM, get MMM's SI module. Shivering OOO - http://www.tesnexus.com/downloads/file.php?id=12061 <-- This basically rebalances items