Hi shootnrun73! <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
[color:"orange"]1. If you use a melee weapon, do damage bonuses from Augment Damage, and Poison, Fire and Lightning Damage stack?[/color]
Yes they do. Realise that Posion, Fire and Lightning Damage only work for a percentage of your hits, so you'll probably only get one at a time.
[color:"orange"]2. If you use a dagger, do Sword Expertise and Augment Damage work together with Assassin's Kiss?[/color]
Sword Expertise does not affect it as it is a Dagger class. Augment Damage should work, but I'm not sure if it's multiplied.
[color:"orange"]3. If you want to make a bow wielding character, does the damage from True Shot and Splitting Arrows work together? Does Augment damage help to improve the damage in this case?[/color]
Augment Damage applies to melee weapons only (not fists, though). I believe True Shot is broken and does not apply any damage.
[color:"orange"]4. 'Each arrow does *36 + 120* damage'. What does this mean?[/color]
This means that each arrow deals at least 36 damage and up to an additional 120 damage. So it deals between 36 and 156 damage.
Good luck! <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />