I cannot learn SoW

[bigdave53]

I have seen some posts about this, but the links they have all seem to be out-of-date. I have installed the titanium discs and downloaded and installed P99Files40 folder. Each merchant I tried lists the classes that are supposed to be able to use Spirit of Wolf, but lists 255 as the required level. I get the class cannot use this spell error when trying to put in spellbook. People in the game say I need to update my spell file, but the only file I can find to download is the P99Files40.zip. What do I need to do for my druid to be able to use sow?