There will be a warlock guide soon... still i'll say some things that might help:
http://www.silkroadforums.com/viewtopic.php?t=21546
(this are the warlock skills)
- Main you should know, you have 1 rod and 1 shield;
- You will need to be pure int for good and strong attack;
- DMO, damage over time, you will poison, bleed, stuff that make them loose life;
- You will be able to stun as well;
- You use garment;
- I advice to be warlock/cleric (both shield, you need more hp, not much mp [wizard/bard seems perfect for mp gain])
- If not try to wizard/warlock
- You are need in party only to kill party mobs and things that last long
What more =?