Skills in Elona can be found at skill trainers (I believe there's other trainers as well on Istan) and also at Hero Skill Trainers - use hero skill points you gather through rising sunspear/lightbringer ranks to buy skills for you and your heroes to use. Also, you can unlock skills using Balthazar Faction gained in PvP battles, and skills unlocked in this manner can be bought at any skill trainer.
And on 'taunt' - there is no taunt skill in GW. It's hard to keep enemies attacking the warrior as they'll pretty much always switch to a softer target.
It's not a biggie though... Tanking is lame, boring, and unneeded in 99.9% of GW. The areas were it is needed (such as the Domain of Anguish) have specific tank builds and the warrior tanks foes with bodyblocking and rounding up foes outside of aggro as much as he does with skills. For the most part though... a 'tank' on a team is simply a deadweight that does no damage (who probably uses lam e skills like Mending too

).